Protecting Patient Personal Information (PHI) – The Security Value That Healthcare Apps Must Never Miss

"I just opened the app to check my medical records... and someone knew my name and medical history."
The healthcare app operations team was shocked when they first saw this message. They suspected it was an app error, but soon discovered a shocking truth. While the app the patient was using appeared to be a legitimate medical app on the outside, the problem began when the app's interface itself had been tampered with.
In healthcare apps, patient personal information (PHI) isn't just data. It's sensitive data, including names, social security numbers, medical records, and medical history. If leaked, it could lead to privacy violations, legal liability, and even compromise patient safety and trust in healthcare services.

Real Case – PHI Leak, That Moment
This incident began with a user's report. • Investigations revealed that my medical records and prescription history were being transmitted externally through the app. • Sensitive data, accessible after logging in, was collected by a tampered app. • Patients simply used the app, while the attacker secretly stole the data. In other words, the user trusted the app to be legitimate, but the data was stolen in a tampered app environment.

Where did the security breach occur?
Analysis of the incident revealed that the primary issues were app integrity and inadequate protection of the input section.

Points of Security Breakdown
• Insufficient app self-verification → Enables execution of tampered/repackaged apps.
• Insufficient protection of login and sensitive information input sections → Risk of keylogger attacks.
• Users were unable to distinguish between legitimate and fake apps. In other words, the moment the app was launched in an untrusted state, all PHI was at risk.

How did LIAPP and LIKEY protect against this incident?

This incident could have been completely prevented by simultaneously applying app integrity and input section protection.

LIAPP – App Forgery and Modification Detection
•App signature, code, and resource integrity checks
•Blocks execution of tampered or repackaged apps
•Preemptively blocks attempts to transmit data externally
Blocks attacks at the app execution stage before PHI is leaked

LIKEY – Input Protection
•Security keypad applied for login and personal information input
•Prevents keylogger-based input theft
Securely protects sensitive user data

Changes after implementation
•Immediately blocks access attempts to tampered apps
•Completely stops PHI leaks
•Restores patient trust and reduces complaints
•Strengthens internal audit and compliance response systems in medical institutions
This case demonstrated that protecting patient information in hospital apps is not simply a legal obligation; it is central to ensuring patient trust and the continuity of healthcare services.

Lessons Learned
Patient personal information (PHI) is not simply data; it is a critical asset directly linked to life.
•If the authenticity of an app is not verified, all security measures are nullified.
•Without input protection, it becomes vulnerable to keylogger and tampered app attacks.

Protecting PHI begins with "app integrity + input protection," and LIAPP and LIKEY provide practical defense. Trust and safety in medical apps begin here.

#MedicalAppSecurity #PatientInformationProtection #PHISecurity #PersonalInformationLeakage #AppForgeryPrevention #MedicalDataProtection #MobileHealthcare #MedicalInformationSecurity #AppSecurityCases #HospitalITSecurity #Compliance #SensitiveInformationProtection #UserTrust #LIAPP #LISS #LIKEY

"We played for the same amount of time, but why does that person grow so quickly?"
One day, a user playing an idle RPG posted on the community forum.

"There's a user who got a full set of legendary gear in one day. Is that even possible?"

At first, I thought it was due to a difference in in-app purchases. However, upon closer inspection, I began to notice a series of strange things.

• Attack power values ​​were out of the normal range.
• Cooldowns were virtually nonexistent.
• Auto-killing continued 24/7. This wasn't a problem with skill or in-app purchases. It was a sign that the game's operating environment itself was being manipulated.

Actual Problem – Game Logic Manipulation Based on Rooting and Jailbreaking

This problem isn't limited to a specific game.

It occurs repeatedly across idle RPGs, growth-based RPGs, and MMORPGs.

Environment Where Attacks Occur

• Rooted or jailbroken mobile devices
• Or virtual environments or emulators

In these environments, the game app's internal memory can be directly accessed.

Where was the security gap?

The core of the problem was not the server, but the client execution environment.

Actual Attack Method
1. Running the game on a rooted/jailbroken device
2. Using a memory manipulation tool
3. Manipulating the following elements in real time:
     o Attack power value
     o Reward multiplier
     o Skill cooldown
     o Growth rate

If you run auto-hunts under these manipulations, you'll grow at a rate that humans can't keep up with.

As a result,
• Normal users are no match,
• Ranking and economic balance collapse,
• The perception that "this game has a lot of hacks" begins to spread.

How could this problem be prevented?

This type of attack is directly defendable with LIAPP.

Applied Solution: LIAPP

LIAPP verifies the game's execution environment.

How did LIAPP protect against this?
① Rooting/Jailbreak Detection
     • Real-time verification of device rooting/jailbreak status
     • Immediate blocking if determined to be a risky environment
② Virtual environments/emulator detection
     • Identification of emulators used for multiple accounts and automation
     • Restriction of execution on non-normal devices
③ Blocking execution of apps in risky environments
     • Access is not limited to actions only
     • Game execution itself is completely blocked

This prevents memory modification from reaching the level of protection.

Actual Changes After Defense

The changes observed after LIAPP implementation were clear:

1. A sharp decline in abnormal growth accounts
2. Elimination of hacking based on automated hunting
3. Stabilization of the top rankings
4. Decreased churn rate of legitimate users

Most importantly, the perception that "using hacks is profitable" has disappeared.

Lessons from this Case

First, a secure server does not guarantee a safe game.
Most game hacking begins in the client execution environment.

Second, rooting and jailbreaking are not "advanced hacking," but basic tools.
For attackers, rooting is not a barrier to entry.
If left unchecked, anyone can use it.

Third, if the execution environment is not controlled, the game's balance will be disrupted.

For games with a growth mindset, environmental control is crucial for the game's longevity.

In Conclusion

In idle RPGs and MMORPGs, "rapid growth" equates to competitiveness and revenue.
If this competitive advantage is lost on rooted and jailbroken devices, the game will ultimately be abandoned by legitimate users.

LIAPP is a security solution that protects the "environment" in which the game runs, before protecting the game logic itself.

#GameSecurity#MobileGameSecurity#IdleRPG#MMORPGSecurity#GameHacking#RootingJailbreak#AutomaticHuntingCheat#GameLogicManipulation#MobileHacking#GameOperation#GameDevelopment#SecuritySolution#LIAPP#LISS#LIKEY#GameSecurityCases#GameHackBlocking

"At first, I had absolutely no suspicions. The profile looked natural, and the chat flowed smoothly."
This is the story of "A," an ordinary dating app user. The dating app, downloaded from the app store, had a familiar UI and seemed functional.
Uploading photos, creating a profile, and even exchanging messages with a partner felt like a "real app."
But a few days later, strange things started happening. I received notifications for signing up to an unused overseas website, mysterious messages, and private conversations that seemed to be shared with someone.
The problem was simple: the app wasn't a "real dating app."

The Real Problem – Typical Fake App Techniques

The attacker copied a legitimate dating app and distributed a repackaged fake app. Actual Attack Method

• Repackaging of legitimate dating app APK
• Exact replication of login, profile, and chat UI
• Transmission of user-entered information (photos, conversations, and location) to an external server

From the user's perspective, they "just installed and used the app," but in reality, the following information was being passed on to the attacker:

• Profile photo
• Chat conversation contents
• Location information
• Login account information

Due to the nature of dating apps, this information is not just personal information; it's a matter of privacy itself.

Where did the security breach occur?

The core of this incident is surprisingly simple.

• The app's authenticity was not verified.
• The screen UI could not be verified as authentic or altered.
• The user had no way to determine whether the app was fake or not.

In other words, it was a classic mobile security incident: "The moment you trust an app, your security is gone."
No matter how strong the server security, the moment a user runs a fake app, all protections are nullified.

How did LIAPP and LIKEY protect against this?

This type of attack can only be prevented by simultaneously protecting both the app itself and the input section.

LIAPP – Counterfeit App (Repackaged App) Detection

LIAPP checks, "Is this app genuine?" from the moment the app is launched.

• App signature, code, and resource integrity checks
• Immediately identifies apps different from officially distributed apps
• Blocks execution of repackaged and modified apps
• Disabling fake login and chat UIs

Blocks the fake app itself from running

LIKEY – Protects Personal Information Input Sections

Even if an attacker targets input information, LIKEY protects the input section itself.

• Implements a secure keypad for login and profile input
• Blocks input theft based on keyloggers and screen captures
• Protects user input data

Keeps photo, account, and profile input sections secure

What's changed since then?

The changes after applying security were clear. • Immediately blocking attempts to access fake apps

• Stopping personal information leaks
• Reducing user churn
• Restoring trust that "this app is safe"

This case once again confirmed that the most important asset in dating apps is not functionality, but trust.

Final Lesson

In dating apps, personal information isn't just data.

• Photos are faces,
• Chats are private, and
• Location is directly related to real-world security.

If an app isn't authenticated, no personal information is safe.
Blocking fake apps isn't an option, it's a prerequisite.
And that prerequisite becomes reality only when LIAPP and LIKEY accurately fulfill their respective roles.

#DatingAppSecurity#FakeAppRisk#FakeAppDetection#PersonalInformationLeakCases#MobileSecurity#AppForgeryDefense#DatingAppRiskFactors#PersonalInformationProtection#MobileAppSecurity#SecurityCaseAnalysis#UserTrust#AppSecurityImportant#SecurityIsAPrerequisite#LIAPP#LISS#LIKEY

"I just took a photo to analyze my skin. After that, I started receiving strange text messages."
This story began with a beauty app user.

Recently, beauty apps have become so comfortable with camera-based features like skin tone analysis, pore diagnosis, and makeup recommendations.
So, this user installed the app without any suspicion and took a selfie without hesitation.
The app screen was familiar, and the functions worked normally.
There was only one problem:
This app wasn't "real."

"It looks like a legitimate app, so what could be the problem?"
Investigation revealed that this app wasn't distributed on the official app store, but a fake, repackaged version of a legitimate beauty app.
The icon was the same, the UI was the same, and the skin analysis flow was the same.
But something completely different was happening under the hood.

The Actual Problem
The fake beauty app worked as follows:
• A legitimate beauty app was repackaged and distributed.
• The face capture and profile input screens were duplicated.
• The user's facial images and personal information were then sent to an external server, simultaneously with normal function processing. From the user's perspective, they simply granted camera access, but in reality, both their facial images and personal information were being leaked.

The damage was particularly severe because the facial data was not simply a photograph, but rather high-risk personal information that could be used as biometric information.

Where did the security breach occur?
The core of the problem was clear.
• The app was not verified as an officially distributed app,
• and there was no way to verify the authenticity of the face capture screen. In other words, the biggest security vulnerability was that "the moment you trusted the app, you handed over all permissions."

Users were cautious, but there was no technical means to distinguish between the two.

How was the defense implemented?

LIAPP – Detecting Counterfeit Apps (Repackaged Apps)
LIAPP was the first solution to address this issue.

LIAPP identifies apps that differ from officially distributed apps by checking: • app signatures, • code structure, and • resource integrity at app launch time.

This allows it to:
• block the execution of repackaged fake apps,
• neutralize the fake face capture UI, and
• completely block access within the fake app environment.

Users can no longer take selfies within the fake app.

LIKEY – Personal Information Input Protection
Not only facial images, but also names, contact information, and profile information were protected.

LIKEY
• provided a secure keypad for profile information entry,
• neutralized keylogger-based input theft.

This protected input information from external sources, even within legitimate app environments.

What changed after that?
The changes following the security measures were clear:
• Immediately blocked access attempts to fake beauty apps
• Stopped leaks of facial images and personal information
• Relieved user anxiety
• Restored brand trust

The most important change was this: A shift from the "user must be careful" approach to the "app must protect the user."

Lessons from this case
In beauty apps, facial data isn't simply a functional element.
Facial data isn't just a "photo," it's "personal information."

Therefore, the following are crucial:
• Verify the authenticity of the app first
• Ensure the captured image isn't tampered with
• Protect input information at all times
No matter how good a feature is, it can't be used without trust.

The starting point for beauty app security is "verification of authenticity," not functionality.

#BeautyAppSecurity#FakeAppWarning#FakeApp#PersonalInformationLeakage#FacialInformationProtection#PrivacySecurity#MobileSecurity#AppForgery#RepackagedApp#SelfieSecurity#CameraPermissions#MobileAppSecurity#SecurityCases#ITSecurityStory#SecurityTrends#LIAPP#LISS#LIKEY

A real-life story of an automated attack on a shopping app

"I clearly set an alarm, but the moment I logged in, it was already closed?"

Similar inquiries began repeatedly coming into a shopping app's customer service center. They included first-come-first-served discount coupons, live commerce-exclusive points, and limited-quantity events. Strangely, only a few users were consistently successful, while most were always a step behind.

At first, I thought it was simply a surge in traffic. The server was slow due to the high traffic during the event.

But something was off.

Always at the same time, always with similar accounts, always at speeds that humans couldn't handle.

That's when the operations team realized,
"This isn't just a traffic issue."

Why are shopping apps so lucrative for attackers?
Shopping apps aren't just content apps.
• Discount coupons
• Points
• Payment information
• Shipping information
• Seller transaction data
All of these are directly linked to real-world monetary value.

Therefore, from an attacker's perspective, a successful shopping app is a target that immediately generates revenue. Among these, the first to be targeted were monetary resources like discounts, coupons, and points.

Actual Attack Methods
The problem was fully revealed after log analysis.
Confirmed Attack Patterns
• Mass collection of coupons using automated clicks and macros
• Abnormal, repeated calls to the event participation button
• Modification of the app to bypass point deduction logic
On the surface, it appeared to be a legitimate app user, but in reality, an automated tool and a modified app were being used simultaneously.

Where was the security vulnerability?

This shopping app had a single problem:
"We couldn't distinguish between normal and abnormal user behavior."
• The server only received requests.
• The app trusted the execution environment.
• There was no standard for distinguishing automation from modification.
This is where app security became necessary.

LIAPP: The First Line of Defense Against Monetary Resource Attacks
Detecting Automated Input and Script-Based Attacks
LIAPP doesn't just look at what the user entered, but how they entered it. • Touch interval
• Input speed
• Repeat cycle
• Event call pattern
Input rhythms that humans cannot achieve ultimately reveal themselves as automated attacks.
Automated click and macro accounts began to be detected using this method.

App forgery and tampering detection
Some attackers were more sophisticated.
• They repackaged legitimate apps,
• modified the point deduction logic,
• and participated in events as legitimate users.

LIAPP's forgery and tampering detection identifies the execution of tampered apps based on changes to
• code
• resources
• and app structure.

Tampered apps targeting coupons and points were no longer able to enter the normal flow.

"Coupons weren't the only problem."

Why LISS and LIKEY emerged
As the investigation progressed, another truth emerged:
Attackers don't just target coupons.

LISS – Remote Support Tool Detection
Screen manipulation using remote support apps was detected in some operations and seller accounts. Through LISS, we:
• detected remote support and remote control tools
• blocked external manipulation risks of critical accounts.

LIKEY – Account and Input Information Protection
Another weakness was the login input section.
By implementing LIKEY's secure keypad,
• we neutralized keylogger-based input theft
• and strengthened the protection of administrator and seller accounts.

What changed after implementation?
Changes occurred faster than expected after implementing security.
• Normalized coupon and point distribution
• Naturally shifted the distribution of event-related accounts
• Reduced customer complaints
• Reduced operational team response burden
The most important change was this:

We shifted from focusing solely on the server when a problem arose to focusing on both the app execution environment and user behavior.

Lessons from this case
The biggest misconception in shopping app security is this: "Just block the server."

However, actual attacks originate in the app, mimicking user behavior and quietly stealing financial resources.

So, what's needed?
• Automation and forgery detection → LIAPP
• External manipulation detection → LISS
• Input information protection → LIKEY
By clearly dividing roles, security becomes less complex and more effective.

#ShoppingAppSecurity#MobileSecurity#CouponAbusiveUse#EventSecurity#MacroDetection#AutomatedAttacks#AppForgery#RASPSecurity#E-CommerceSecurity#SellerAppSecurity#AccountProtection#FintechSecurity#MobileAppSecurity#SecurityCases#SecurityTrends#LIAPP#LISS#LIKEY

Hooking-based balance and limit manipulation: The most dangerous attack that can cripple a financial app

"My balance is clearly insufficient, but the payment was made."
One day, the customer service center of fintech app A, which offered both simple payment and microloan features, began receiving a steady stream of strange inquiries.
At first, they thought it was a simple mistake or user misunderstanding. However, the inquiries became increasingly specific.
✔ The payment was approved even though the balance was 0 won.
✔ The loan limit suddenly increased.
✔ All transactions appeared normal on the app screen.

The operations team immediately checked the server logs and payment records.
However, the results were unexpected.
- The server logs were perfectly normal.
- The payment approval/rejection logic was also fine.
- There were no signs of external intrusion.
"This is strange... There's clearly nothing wrong with the server. Why is this happening?"

The Real Problem - The "App," Not the Server, Was Being Deceived
As the investigation continued, the security team discovered a common thread. Most of the affected accounts were accessed from a specific Android environment.
A close analysis revealed that the attackers did not compromise the server.
Instead, they were manipulating the app itself running on the user's smartphone.

The actual attack method was as follows:
• Using a hooking tool to access memory while the app was running.
• Forcibly changing the return value of the balance/limit query function. o Return false → Return true
• The app screen displayed "Insufficient balance."
• Payment/transfer requests were sent to the server as if they were legitimate users.

In other words,
the server was not fooled, but the app had already been manipulated.
The server received a "normal request," the user confirmed "normal approval," and in the meantime, a financial incident occurred.

Why is this attack particularly virulent in financial apps?

The reason hooking-based attacks are so dangerous is because, on the surface, everything appears normal.

✔ Users are reassured by the confirmation screen. 

✔ Server logs show no abnormalities. 

✔ Small payments can be repeated without notice. 

✔ Damage accumulates, and identifying the cause is delayed.

Especially in financial and fintech apps, these attacks aren't simply bugs; they directly lead to a breakdown in trust.
•    Customers think, "I can't trust this app."
•    Financial institutions are exposed to internal audit and regulatory risks.
•    Trust, once lost, is difficult to regain.

At this point, the operations team realized a crucial truth:
"Server security alone is not enough to protect financial apps."

A Shift in Direction – Protect the App Itself
Company A completely changed its strategy:
"If an attack originates from the app, the app must be protected."

This is how they implemented a mobile security system centered on LIAPP, LIKEY, and LISS.

LIAPP – Making the App Execution Environment Trustworthy
First and foremost was LIAPP.

LIAPP Implementation Details
✔ Runtime Integrity Check
→ Real-time verification of app code and memory modifications
✔ Hooking and Debugging Detection
→ App Termination Upon Detection
✔ Memory Manipulation Blocking
→ Balance and Limit Inquiry Function Modification Prevented
✔ Abnormal Environment Access Restrictions
→ Blocking Rooting, Emulators, and Hacking Tool Environments
• ✔ Automated Input and Macro Pattern Detection
• ✔ Fake Screen Overlay Attack Neutralization

In particular, an additional integrity check was applied immediately before payment and remittance, protecting the entire payment flow.

LIKEY – Secure from Authentication to Input
The operations team went one step further. "What if an attacker steals login information?" So, they also implemented **LIKEY (Mobile Security Keypad**.

LIKEY's Role
✔ Key input encryption
✔ Blocks keylogger-based theft
✔ Protects login, password, and payment authentication sections
This blocked the entire path from account theft to hooking attacks.

LISS – Prevents information exposure through the screen
Finally, LISS was added.

LISS Application Effects
✔ Blocks screen capture and screen recording
✔ Blocks external overlay apps
This eliminated the possibility of externally leaking balance, limit, and payment information.

Results – "No More Hacks"
After implementing the security measures, the results were clear.
✔ Completely blocked attempts to manipulate balances and limits
✔ Maintained zero payment anomalies
✔ Passed internal security audits by financial institutions
✔ Restored user trust

This response was even confirmed in the illegal community:
"This app can no longer be hooked."

Only then did the operations team breathe a sigh of relief.

Lessons from Financial App Security
The lesson Company A learned from this incident was clear:
Financial app security isn't about "server protection," but about "trust preservation."
• Securing servers alone isn't enough.
• Protecting the network alone isn't enough.
• The apps in users' hands must be secure.

Minimum Security System for Financial and Fintech Apps
The following are no longer optional for financial apps, but rather fundamental:
• LIAPP → App integrity, hooking, and forgery prevention
• LIKEY → Authentication and input information protection
• LISS → Screen and information leak prevention
These three are not separate functions, but a single security system for operating financial services.

#FinancialAppSecurity #FintechSecurity #MobileFinancialSecurity #FinancialSecurityCases #FintechAccidentCases #HookingAttacks #MemoryManipulation #BalanceManipulation #LoanLimitManipulation #PaymentManipulation #FinancialHacking #AppHooking #MobileHackingCases #LIAPP #LIKEY #LISS #MobileAppSecurity #AppIntegrityCheck #ForgeryPrevention #RepackagingBlocking #HookingDetection #SecurityKeypad #FintechOperation #FinancialServiceOperation #SecurityAudit #FinancialRegulatoryResponse #SecurityIncidentResponse #TrustBasedService #MobileSecuritySolution #FintechStartup #FinancialPlatform #ElectronicFinancialSecurity #MobilePaymentSecurity
#EasyPaymentSecurity

A Real-World Case Study (LIAPP·LISS Implementation Review)

"Lecture videos are floating around on Telegram."

For anyone running an online education service, this single sentence alone will send a shiver down your spine.

Indeed, Company A, which operated an online education platform, received a report one day to its customer service center.

"Your lecture videos are being shared in Telegram chatrooms."

"PDF textbooks are also being circulated."

At first, they suspected internal employee error or data management issues. However, no matter how much they searched internal logs, they found no abnormalities.
In the end, the problem wasn't "external," but "regular students' smartphones."

Leaks of Educational App Content Are Easier Than You Think
Many education app operators think,
"Our app requires logins, payments, and access is only possible through the app. How could it possibly be leaked?"
But the reality is different.
Leaks of content from education apps occur in much simpler ways than you might imagine.

The most commonly used methods:
• ✔ Using screen capture/screen recording apps
• ✔ Recording screen mirroring via remote control apps
• ✔ Removing DRM from tampered apps
• ✔ Directly extracting video files from an emulator
Educational apps, especially Android-based apps, are often operated with little security due to the misconception that "just installing the app means it's safe."

Company A also implemented a standard player + login, resulting in lecture videos being recorded as is.

Why Did Existing Response Methods Not Work?
After the issue arose, Company A quickly took action.

The methods Company A initially attempted included:
• ✔ Inserting a watermark into the video player
• ✔ Applying web-based DRM
• ✔ Strengthening the warning text in the Terms of Use regarding illegal data leakage.
However, the results were largely unchanged.

The reason was simple:
• Watermarking does not prevent leakage.
• Web DRM has limitations in the mobile app environment.
• Terms of Use cannot be technically blocked.

In other words, they simply said, "Do not record," but failed to create an environment that prevents recording.

A Fundamental Solution: Simultaneous Application of LIAPP and LISS
Company A ultimately changed course.
"Instead of responding after a leak, let's create a structure that prevents leaks from the start." That choice was the simultaneous application of LIAPP and LISS.

LIAPP – Protecting the App Itself
LIAPP is a service that protects the integrity of the app and its execution environment.
LIAPP Features Applied to Company A
• ✔ Integrity check upon app launch
• ✔ Blocking rooting and emulator environments
• ✔ Detection of hacking tools used for video extraction
• ✔ Overlay blocking
From now on, apps modified for illegal purposes will no longer run.
The method of extracting video files from emulators was also immediately blocked during app launch.

LISS – Protecting the Screen Itself
But Company A didn't stop there.
"What if I record the screen in a normal app environment?"
LISS was the solution to this problem. Changes Made Possible with LISS Implementation
• ✔ Real-time screen capture blocking
• ✔ Screen recording app detection and blocking
• ✔ Remote control/mirroring app detection
In other words, even if the app is functioning properly, "screen recording itself is now impossible."

From the student's perspective, this may only feel like "captures are suddenly unavailable," but from the operator's perspective, a key barrier to content protection has been created.

Results: Visible Changes
After implementing security, Company A's situation clearly changed.
• ✔ Virtually zero cases of illegal video leaks
• ✔ Over 70% reduction in customer inquiries regarding copyright
• ✔ Alleviation of instructor anxiety and contract retention
• ✔ Preservation and resale of content value

An operations team member stated,
"For the first time, I realized that protecting lectures is more important than creating them."

Protecting Educational Content is No Longer an Optional Thing
Security is no longer an afterthought in educational apps. • Content equals revenue.
• Content leaks equal a loss of trust.
• Loss of trust leads to service collapse.
The moment content is sold, security becomes a fundamental requirement, not a feature.

Three Security Pillars for Protecting Education Services
To operate an education app safely, a single security system is needed, not a single feature.
• LIAPP: App Integrity, Anti-Forgery and Repackaging, Overlay Blocking
• LISS: Screen Capture and Recording, Remote Support Detection
• LIKEY: Input Information Protection (Account, Payment, Authentication)
These three are not separate solutions, but a single line of defense that protects the content, revenue, and trust of an education service.

While creating a course takes months, a leak only takes minutes.
If you're operating an education app, now is the time to re-evaluate your security.

#EducationalAppSecurity #ElearningSecurity #OnlineLectureSecurity #EducationalContentProtection #LectureVideoLeakage #BlockIllegalCapture #BlockScreenRecording #MobileAppSecurity #AntiAppForgery #BlockRepackaging #RootingDetection #BlockEmulators #MobileSecuritySolution #LIAPP #LISS #LIKEY #EduTechSecurity #ContentCopyrightProtection #EducationPlatformOperation #EducationAppCase #SecurityCase #AppSecurityCase #LecturePlatform #MobileDRM #EducationStartup #EduTech #ServiceSecurity #CorporateMobileSecurity

Preventing Location Information Falsification – A Case Study of Using LIAPP for Mobile App Security

Hello. Today, I'd like to share a case study of protecting apps from hackers who manipulate location information (GPS) in mobility-based services to gain illegal benefits.

In particular, I'll share a real-world experience of successfully detecting and blocking GPS spoofing apps through the application of the mobile security service LIAPP.

Problem: Location-based services misused through GPS manipulation
Mobility services often have different fares depending on the user's location or offer benefits that are only available in certain areas.
However, the following malicious attempts have recently been discovered:

• Using GPS manipulation apps to disguise movement to a false location
• Unauthorized participation in fake location-based rewards and events without actual movement
• Falsifying driving and commuting records to receive unauthorized allowances and fares
Hackers exploited these services by manipulating and transmitting the device's location information using separate GPS fake apps or virtualization tools with location alteration capabilities. This damage resulted in disadvantages for honest users and a decline in service reliability.

Countermeasures: Detecting and Blocking Location Falsification with LIAPP
To counter these location manipulation threats, we introduced the mobile security service LIAPP, establishing a system for detecting GPS falsification and blocking it based on environmental analysis.

Key Security Features of LIAPP Application

1. Location Information Forgery Detection
• Real-time analysis of abnormal fluctuation patterns in device GPS information
• Detection of Mock Location usage
• Detection and blocking of apps or frameworks that induce location falsification

2. Virtual Environment and Rooting Detection
• Detection of rooted devices and virtual devices commonly used for GPS manipulation
• Blocking execution in emulator environments
• Blocking plugins that bypass rooting and location manipulation

3. App Execution Integrity Verification
• Detection of GPS-related code forgery and modification attempts
• Detection of app repackaging and blocking execution

Application Results

After implementing LIAPP, the service operations team experienced the following tangible benefits:

• Blocking over 89% of location manipulation attempts
• Improved detection rate for mock location and GPS spoofing apps
• Maintaining zero instances of false driving records and reward abuse
• Restoring user trust and improving app ratings
Most importantly, the system maintained the user experience for legitimate users while precisely detecting only malicious manipulation.

In conclusion

Location-based services are a key feature that provide convenience and a user-centric experience, but they also carry the constant risk of forgery and manipulation.

With LIAPP, we've implemented a security system that goes beyond simply checking GPS information to comprehensively analyze the execution environment, app integrity, and user behavior logs, enabling us to provide a more stable and reliable service.

If you operate an app service where location information is crucial, we strongly recommend considering preemptive security measures through LIAPP.

#LIAPP #LIAPPApplicationCase #MobileAppSecurity #AppSecurity #MobileSecurity #MobileSecuritySolution #GPSSpoofing #GPSSpoofingPrevention #LocationManipulationBlocking #LocationSpoofing #LocationInformationSecurity #LBSSecurity #MockLocationDetection #ForgeryDetection #AppForgeryPrevention #RepackagingBlocking #IntegrityCheck #RootingDetection #RootingBlocking #VirtualEnvironmentDetection #EmulatorBlocking #HackingToolDetection #RuntimeProtection #O2OSecurity #MobilitySecurity #MobileServiceSecurity #FraudPrevention #PreventionOfFraud #BlockingFraud #SecurityLogAnalysis #ThreatAnalytics #EnvironmentBasedDetection #LocationBasedServiceSecurity #LBSServiceOperation #CustomerInformationProtection #EnhanceServiceReliability

Blocking User Information Collection through Fake Apps – A Case Study of LIAPP, a Mobile App Security Service

Hello. Today, we'd like to share a case study of a company operating an O2O (Online to Offline) mobile service. They recognized the threat of user information collection through fake apps and effectively blocked it with the mobile security service LIAPP.

The Issue: The Emergence of "Fake Apps" Impersonating Brands
Recently, a popular O2O app operating in Korea has begun receiving unusual complaints from users.
Users have reported complaints such as, "I logged in through the app, but my points disappeared," and "I feel like my personal information has been leaked." Our investigation confirmed that fake apps disguised as official apps are being distributed.

Key characteristics of fake apps:

• Disguised with the same icon, name, and UI as the official app
• Distributed through separate marketplaces (unofficial channels)
• Sending user input information to external servers
• Involved in malicious activities such as advertising revenue generation, account hijacking, and location data collection
Notably, customers were unaware of the counterfeit nature of the app because it was so similar, and this threatened to damage the image of the official app.

Countermeasures: Establishing a system to detect counterfeit apps and prevent user misuse using LIAPP
To counter this threat, the company immediately adopted the mobile app security service LIAPP, establishing a multi-layered security system that verifies app integrity, detects forgery, and blocks execution.

Key Features of LIAPP Implementation

1. Detect app forgery and repackaging
• Perform integrity checks upon app execution
• Detect repackaging (app code modifications and redistribution)
• Forged apps are immediately terminated and notifications are processed

2. Protect the execution environment and detect hacking tools
• Detect debugging tools, hooking attempts, and malicious frameworks
• Block analysis tools commonly used in fake apps

3. Integration with a system to prevent user abuse
• Restrict user access in abnormal execution environments
• Collect and analyze security event logs
• Automatically filter out users who abuse the app through marketing/operation databases

Application Results
After implementing the LIAPP security module, the following effects were confirmed:

• Successfully detected and blocked fake apps distributed on unofficial app markets
• Maintained zero login and personal information theft incidents through fake apps
• Established a proactive blocking system for suspected users based on user abuse logs
• Reduced customer service inquiries by 47%, restoring user trust
Above all, a company values ​​its brand. We've successfully protected our image and customer trust, and we've also secured the secure management of customer location and payment information, which are crucial for O2O services.

In conclusion

Recently, sophisticated counterfeit apps that mimic official apps have been on the rise. Many attacks disguise themselves as legitimate apps, but steal user information or target advertising revenue. In an era where "app imitation" itself poses a security threat, simple UI blocking or antivirus software alone is inadequate.
LIAPP's mobile security features are essential, verifying the integrity and authenticity of apps in real time and preventing counterfeit apps from even running on user devices.

Take the first step toward protecting your brand and customer trust with LIAPP today.

#LIAPP #LIAPPApplicationCase #MobileAppSecurity #AppSecurity #MobileSecurity #MobileSecuritySolution #AppForgeryPrevention #RepackagingBlocking #IntegrityCheck #FakeAppDetection #FakeAppBlocking #MaliciousAppDetection #AppRepackaging #TamperingPrevention #BrandImpersonation #HackingToolDetection #DebuggingBlocking #HookingBlocking #ReverseEngineeringProtection #O2OSecurity #O2OServiceSecurity #PersonalInformationProtection #CustomerInformationProtection #AccountProtection #SecurityLogAnalysis #ThreatSignals #RuntimeProtection #UserAbusePrevention #MaliciousUserBlocking #FraudPrevention #SecureMobileService #AppIntegrity #AntiFraud #BrandProtection #CorporateSecurityStrengthening

Detecting Account Theft and Abnormal Payments – A Case Study of LIAPP Applications for Mobile App Security

Hello. Today, we'd like to share a real-world example of how LIAPP was implemented in a mobile shopping app to detect and block account theft and abnormal payments.

As the mobile commerce environment becomes increasingly sophisticated, hackers targeting customer personal information and payment systems are also becoming more sophisticated. Therefore, a proactive security response is becoming increasingly essential.

Challenge: Account theft and unauthorized payment attempts
The following security threats have recently been identified in live mobile shopping apps:

• Illegal logins using externally collected IDs and passwords
• Abnormal payment attempts and exploitation of discount and coupon systems
• Unauthorized item purchases using rooted devices or automated tools
If these threats lead to actual transactions, they can lead to not only customer harm but also damage to the company's brand reputation and financial losses. The problem is that these attempts are disguised as legitimate user behavior, making detection difficult.

Solution: Strengthening Security with LIAPP
To fundamentally address security issues, we introduced the mobile app security service "LIAPP" and enhanced the following security features:

LIAPP Key Features

1. Hacking Tool Detection and Blocking
• Automated login/payment tools are detected and app execution is blocked.

• Detects reverse engineering, debugging, and hooking attempts.

• Prevents malicious SDK insertion and repackaged app execution.

2. Rooting Environment and Unauthorized Access Detection
• Blocks execution on rooted devices or virtual environments.

• Also responds to bypass rooting detection techniques (root masking blocking).

• Detects access using network proxies and VPNs.

Changes After Implementation
Since implementing LIAPP, the security of the mobile shopping app has significantly improved:

• Account theft attempt blocking rate improved by over 92%
• Strengthened server-to-app verification for abnormal payment requests
• Maintained zero customer losses and reduced customer support inquiries
• Increased platform reliability and passed internal security audits.
Notably, we successfully maintained a balance between user experience (UX) and security by precisely responding to only abnormal accesses without inconveniencing legitimate users.

In conclusion,

Account theft and unauthorized payments are not just security threats; they pose serious risks that threaten customer trust and service sustainability.

Implementing security through LIAPP not only blocks short-term threats, but also stabilizes security operations in the long term by establishing a systematic tracking system based on security logs.

If you operate a mobile app, we strongly recommend implementing a specialized security solution like LIAPP to protect against threats that may occur within your app at any moment.

#LIAPP #LIAPPApplicationCases #MobileAppSecurity #AppSecurity #MobileSecurity #MobileSecuritySolution #AppSecurity #ApplicationSecurity #ClientSideSecurity #AppForgeryPrevention #TamperingPrevention #IntegrityCheck #RuntimeProtection #InAppProtection #SecurityHardening #RootingDetection #RootingBlocking #RootingDetection #EmulatorDetection #HackingToolDetection #AutomationToolBlocking #AutomationToolDetection #DebuggingBlocking #HookingDetection #ReverseEngineeringProtection #AccountTheftPrevention #AccountTakeoverPrevention #CredentialStuffing #AccountTakeover #FraudLoginPrevention #AbnormalPaymentDetection #FraudPrevention #PaymentSecurity #TransactionSecurity #MobileFraudPrevention #CommerceSecurity #ShoppingAppSecurity #SecureMobileCommerce
#PrivacyProtection #CustomerInformationProtection #ThreatDetection #AntiFraud #DefenseInDepth #SecuritySolution #EssentialForAppOperators #SecurityEnhanced
#CommerceOperations #SecurityLogs #ThreatSignals

Blocking Unauthorized Access by Detecting Rooting and Emulators – A Case Study of LIAPP, a Mobile App Security Service

Hello!

Today, we'd like to share a real-world example of how LIAPP, a security service, addressed security threats posed by mobile apps, specifically unauthorized access via rooted devices and virtual environments (emulators).

With the proliferation of various mobile services in finance, commerce, and public sectors, everything from checking accounts, transferring money, making payments, and authenticating accounts can now be done with just a smartphone. However, behind this convenience lies a security vulnerability that hackers exploit.

Case Situation: Attacks Exploiting Rooting and Emulator Environments

One recent security threat involves attempts to access accounts illegally, collect automated information, and insert malware through apps running on rooted Android devices or PC-based emulators.

These attacks were characterized by:

• Breaking down the app's security perimeter on rooted devices
• Repeated account takeover attempts using automated scripts in emulators
• Bypassing security policies and manipulating authentication or payment processes
• Automating information leaks by running the app in parallel with malicious apps

This resulted in the exposure of user account information, authentication tokens, and session information, potentially leading to unknowing remittance and payment fraud. This was a very dangerous situation.

Response: Rooting and Emulator Detection and Blocking with LIAPP

To address this issue, we introduced LIAPP, a specialized mobile app security service.

LIAPP provides real-time environment detection and behavior-based analysis capabilities that can respond to various threat scenarios, ensuring the security of the app execution environment.

Summary of Applied Features

1. Rooting Detection and Blocking

• Detects system domain changes, su command usage, and root-privileged apps.
• Immediately halts app execution and issues a warning upon detection of rooting.
• Precisely detects rooting bypass techniques (masking, root cloaking, etc.)

2. Emulator Detection and Blocking

• Virtual environment detection based on device profiling
• Blocks execution of major emulators such as BlueStacks, Nox, and Genymotion
• Prevents PC-based automation tools and repetitive bot attacks

3. Unauthorized Access Behavior Analysis

• Detects abnormalities such as unauthorized networks and debugging connections
• Integrates server logs and blocks abnormal user behavior
• Configures administrator notifications when security events occur

4. Prevents app forgery and tampering and protects the execution environment

• Repackaging and malware Disabling embedded apps
• Automatically terminates apps if anomalies are detected after an integrity check
• Improving app security without user interaction

Implementation Results

Since implementing LIAPP, the app's security has been significantly improved:

• 100% blocking app execution in rooted and emulator environments
• Real-time analysis of unauthorized access attempt logs strengthens the proactive response system
• Maintaining zero account hijacking and authentication bypass attempts
• Many users have expressed trust in the app
• Highly evaluated in internal audits and external security reviews

Most importantly, the app has been able to thoroughly respond only to attackers without inconvenience to legitimate users.

In conclusion

Rooting detection and emulator blocking are not mere options; they are fundamental and essential elements of mobile service security.

Especially in financial, commerce, and authentication-based apps, a single security incident can threaten trust, users, and even revenue. Therefore, a proactive security response system that keeps apps safe is crucial even at this very moment.

LIAPP provides comprehensive security features, from the execution environment to internal logic and server integration. If you want to protect the core assets of your mobile app, join LIAPP.

#LIAPP #LIAPP #RootingDetection #RootingBlocking #EmulatorDetection #EmulatorBlocking #AppSecurity #MobileSecurity #SecuritySolution #UnauthorizedAccessBlocking #AutomatedAttackPrevention #BotPrevention #AppForgeryPrevention #IntegrityCheck #DebuggingBlocking #FinancialAppSecurity #PublicAppSecurity #CommerceAppSecurity #MobileSecurityCases #SecurityApplications #HackingPrevention #AppSecurityEnhanced #AndroidSecurity

In-App Purchase Protection Case Study to Prevent Automatic Payment Bypass – Introduction of LIAPP

Hello!

Today, we'll introduce a case study of strengthening payment security in a mobile game app. Specifically, we'll explain how LIAPP effectively prevented hackers from bypassing in-app purchases (IAPs) to obtain paid items without authorization.

Payment bypassing in game apps is a real thing.

When operating a mobile game, you may occasionally discover unusual payment histories. Some of these attacks occur through the following:

• Manipulating the in-app purchase (IAP) screen to obtain items without payment.
• Falsifying payment response values ​​to deceive the server.
• Rooting the device and manipulating the app's internal payment logic.
• Integrity threats using illegal marketplaces or hacking tools.

If left unchecked, these attacks can lead to not only revenue loss but also the loss of legitimate paying users. These threats are especially critical for RPGs, strategy games, and collectible games, where item value is high.

Background for the Introduction of LIAPP: The Need for In-App Purchase (IAP) Protection

After recognizing automated payment bypasses and integrity attacks using hacking tools, our team introduced 'LIAPP,' a specialized mobile security service, to strengthen app security.

LIAPP is a security service optimized for protecting in-app payments, providing features that go beyond simple code protection to include integrity verification of the actual payment flow and server-linked security.

Security Features Applied

1. Payment logic protection and tamper prevention

• Encryption and obfuscation of in-app payment-related code
• Detects rooting, hooking, and debugging attempts to halt payments
• Repackaged apps are blocked from running → Illegal APKs are blocked

2. Implements server-linked payment verification logic

• After payment is completed, communicates with the server to re-verify the actual payment
• Compares Google/Apple server responses with our own logic

3. Security event logs and monitoring

• Identifies and blocks users exhibiting abnormal behavior

Changes since implementation

Since implementing LIAPP, we have experienced the following results:

• Abnormal payment rate reduced by approximately 96%
• Increased access blocking rate for users using illegal APKs
• Attempts to acquire in-game paid items without authorization Block
• We've received numerous positive user feedback, including "high payment security."
• We've also passed the app security certification process in both store and platform reviews.

The best part is that we were able to enhance security without compromising the normal user experience.

In conclusion

As the mobile gaming industry grows, payment security has become a key element directly related to game profitability.

LIAPP not only protects the payment process, but also comprehensively addresses the integrity of the entire app, rooting/hacking prevention, and server integration verification, making the mobile payment environment much safer.

If you're running a game app, we recommend strengthening your payment security with LIAPP right now. Protecting paid content is essential to preserving the value of your game.

#LIAPP #LIAPP #In-App Payment Protection #IAP Security #Payment Bypass Prevention #Mobile Game Security #Game Security #App Security #Payment Hacking Prevention #Rooting Blocking #Hooking Blocking #Debugging Blocking #Integrity Verification #APK Forgery Prevention #Illegal APK Blocking #Security Solution #Game Operation #Mobile Security #Game Development #Game Service Operation #Security Implementation Case #App Integrity Protection #Payment Security Enhancement

Preventing Information Exposure by Blocking Third-Party App Access – LIAPP and LISS: A Case Study of Public Institution Mobile Security

Hello!

Today, we'll introduce a real-world security case study of LIAPP and LISS, which effectively prevented the leakage of sensitive personal information by blocking third-party app access in public institution mobile apps.

With the widespread adoption of smartphone-based administrative services, various public institution apps are now handling highly sensitive personal information, such as resident registration numbers, addresses, health information, and financial data. Security vulnerabilities in these apps can lead to catastrophic data leaks, making preemptive response essential.

Threat Factors: Overlay Attacks and Third-Party App Access

Common smartphone features like multitasking, split screens, and pop-up overlay apps can sometimes be exploited. Some malicious apps steal sensitive information by secretly overlaying a transparent screen (overlay) over a running app, intercepting keystrokes or capturing or copying internal app information.

These attack techniques can manifest in the following ways:

• Stewing input data, such as account numbers and passwords, during keyboard input
• Phishing attacks disguised as pop-up windows
• UI and data leaks through screen capture
• Apps running in the background accessing clipboard or memory information

Given the nature of public agency apps, these attacks, if left unchecked, are highly likely to lead to a loss of policy trust and massive user damage.

Background for the Introduction of LIAPP & LISS: Blocking Third-Party App Access and Strengthening Screen Protection

To further enhance security for public agency apps, we have introduced the mobile application security solution LIAPP and the mobile content and screen protection solution LISS.

Due to the nature of public services, which involve sensitive data entry, authentication procedures, and internal business functions, there have been persistent attempts to intercept the UI or display overlays to collect information from outside the app.

Accordingly, we have built an integrated security system that combines "App Protection (LIAPP)" and "Screen Protection (LISS)" to simultaneously respond to various threats, including external app access, overlays, and screen capture.

By applying these two services together, we were able to simultaneously implement:

• blocking third-party app overlays and touch injections;
• preventing screen capture and recording;
• preventing hooking, debugging, and forgery;
• protecting the app UI and preventing exposure of sensitive information;
• enhancing content output and screen layer security.

This enabled us to reliably meet the security requirements required for operating public institution services.

Feature Details

1. Overlay Detection and Blocking

• Immediately detects when another app overlaps the UI while the app is running.
• If an overlay is detected, the user is warned and the app is automatically terminated.
• Detects transparent overlays, advertising apps, and keylogger apps.

2. Screen Capture Prevention

• Prevents capture and recording of sensitive information areas within the app.
• Protects clipboard access and prevents copying.
• Detects and restricts the execution of screen recording apps.

3. App Forgery, Hooking, and Debugging Prevention

• Prevents app execution if tampered with or repackaged.
• App protection actions are triggered when hooking tools, rooted devices, or debuggers are connected.
• Integrated with real-time threat detection and administrator log forwarding.

4. Controls information exposure during multitasking.

• Blurs or blanks sensitive UI when switching apps.
• Integrates with automatic logout/session termination before screen lock.

Applications Results

After applying LIAPP and LISS to public agency apps, the following benefits were achieved in terms of user protection and operational stability:

• Complete blocking of overlay-based attacks
• Establishment of a rapid detection and response system for third-party app access
• Reduced risk of sensitive information exposure → Improved security audit items
• Reduced user complaints and improved app reputation

Particularly satisfying was the thorough strengthening of internal information security without impacting the user experience (UX).

In conclusion

Mobile security is no longer an issue limited to financial and gaming apps. Protecting mobile services is becoming essential across all sectors, including public institutions, education, healthcare, and communications.

LIAPP and LISS provide a "preemptive defense system" that even considers invisible security threats. As seen in this example, thoroughly isolating and protecting sensitive information within an app from external apps is the first step toward building digital trust.

#LIAPP #LISS #LIS #MobileSecurity #AppSecurity #PublicInstitutionApp #PublicAppSecurity #OverlayBlocking #ThirdPartyAppAccessPrevention #ScreenCapturePrevention #ScreenRecordingPrevention #AppForgeryPrevention #HookingPrevention #DebuggingPrevention #SensitiveInformationProtection #PublicInstitutionSecurity #MobileSecuritySolution #AppSecurityEnhancement #PersonalInformationProtection #SecurityCases #SecurityIntroductionCases #MobileServiceSecurity #ClipboardSecurity #UISecurity #AppSecurityPolicy

Preventing Content Capture and Blocking DRM Bypass – Introduction of LIAPP & LISS

Hello!

Today, we'd like to share a real-world example of how LIAPP and LISS (screen capture prevention service) were implemented together to safely protect high-definition video content in a mobile environment.

As mobile-based content provision expands across various industries, including OTT, education, film, and broadcasting, the threat of illegal content capture, duplication, and leakage is rapidly increasing. The damage caused by illegal distribution is particularly significant for high-quality videos, making strengthening content security in mobile environments a critical priority.

Why is content protection important?

The widespread adoption of mobile streaming services has significantly improved user convenience, but at the same time, security threats, such as the following, are also rapidly increasing.

Real-time recording using a screen recording app

Source extraction using DRM (Digital Rights Management) bypass tools

Memory capture on rooted/jailbroken devices

Unauthorized storage and leaks using third-party recording and hooking apps

These threats not only harm content copyright holders, but can also negatively impact service providers' credibility and partnerships.

Background for the Introduction of LIAPP + LISS

Establishing a Two-Track Security System for Mobile Content Protection

Rather than blocking content security in isolation, we have established a systematic protection environment by applying application security (LIAPP) and a screen capture prevention service (LISS).

The combination of these two services creates a robust content security system that protects the entire app chain: app → playback → screen.

Key Applications

1. Screen Recording Detection and Blocking

• Real-time detection of OS API-based recording and capture operations
• Video playback is paused or the screen is blanked when recording begins
• Immediately displays a warning message to the user

2. Prevents DRM Bypass Attempts

• Automatically terminates the app when detecting DRM disabling or bypassing attempts
• Blocks DRM bypass attempts in rooted and jailbroken environments
• Encrypted streaming and playback control through LISS DRM
• All security events are linked to server logs

3. Blocks external capture apps and hooking tools

• Detects mirroring, hooking, and debugging tools
• Strongly blocks API hooking and memory access attempts
• Ensures security for content output areas

4. App forgery and integrity verification

• Prevents APK tampering and repackaging
• Blocks execution if integrity is violated

5. Enhanced streaming security

• DRM Encrypted streaming
• Session-based access control
• Customized watermark application
• Automatic application of security policies based on playback environment

Effects after implementation

After implementing LIAPP and LISS together, we observed the following benefits:

• A significant reduction in piracy and unauthorized recording attempts
• Increased security evaluation scores for affiliated companies, including video companies and broadcasters
• Increased positive mentions of "safe content provision" in user reviews
• Smooth passage of DRM compliance and security audits

Among other benefits, the fact that both security services operate automatically in the background, with no impact on the content playback UX, was a significant advantage.

In conclusion

Content is a core asset of a service.

Especially in areas directly related to copyright, such as video, broadcasting, and educational content, the strength of mobile security directly impacts service reliability.

The integrated security system of LIAPP and LISS goes beyond simple detection to provide real-time protection against capture, recording, DRM bypass, hooking, and tampering attempts.

If you want to safely deliver high-quality content on mobile platforms, now is the time to strengthen your content security system.

#LIAPP #LISS #LIAPP #ContentSecurity #MobileSecurity #ScreenCapturePrevention #ScreenRecordingBlocking #DRMSecurity #DRMBypassBlocking #OTTSecurity #VideoSecurity #ContentLeakPrevention #StreamingSecurity #HookingPrevention #AppForgeryPrevention #IntegrityVerification #MobileDRM #EducationAppSecurity #BroadcastContentSecurity #MobileContentSecurity #MobileStreamingSecurity #ContentDRM #AntiPiracy #AppSecuritySolution #ContentCapturePrevention #SecurityIntroductionCases

Preventing Automated Hunting with Emulator Environment Detection – LIAPP Implementation

Hello!

Today, I'd like to share a real-world example of implementing LIAPP to block automated hunting and repetitive bots in a mobile game environment.

One of the concerns many development teams face when servicing mobile games is the disruption of game balance caused by abnormal players. A key issue is automated hunting and repetitive macro execution using emulators.

Automated Hunting & Macros: Why Are They a Problem?

Recently, many users are using PC-based Android emulators to enjoy mobile games for convenience. However, some users are using macro bots in this environment for automated hunting, repetitive collection, and resource farming, which can lead to the following problems:

- Destruction of fair competition

- Economic system imbalance

- Excessive consumption of server resources

- Increased user attrition

The development team needs security features that continuously detect and address abnormal activity.

Background for Introducing LIAPP: Strengthening Emulator Monitoring and Response to Macros and Hacking Tools

Mobile game services are constantly facing various security threats. In particular, attempts to directly disrupt game balance, such as automated macros or memory hacking, can have a significant negative impact on service quality and user experience.

To more systematically detect and respond to these threats, we introduced LIAPP, a mobile security solution.

LIAPP is an all-in-one security service for mobile app protection. It excels at detecting macros and hacking tools while also providing comprehensive monitoring of the emulator environment.

Emulators are particularly important for ensuring user accessibility, so we prioritize their use for threat analysis and monitoring, rather than outright blocking.

Key Security Threats

- Repetitive Automation Scripts (AutoHotKey, Macros, etc.)

- Memory Modification Tools and Hooking Tools

- Modification Attempts Using Rooting and Debugging

- Emulator-Based Operating Environments

- BlueStacks, Nox, LDPlayer, etc.

LIAPP Application Methods

1. Emulator Environment Monitoring

- Analysis of various emulators (BlueStacks, Nox, MEmu, etc.)

- Environment Analysis Based on Virtualization, Device Properties, Device ID, etc.

- Enhanced Monitoring Functions for Malicious Pattern Detection and User Group Analysis

- Response with Warning Messages or Restrictions if Necessary

2. Detection of Automation Tools and Macros

- Analysis of Touch Input Patterns (Repeated Coordinates, Same-Spacing Input) etc.)

- Precisely identifies automated script behavior

- Various responses available upon detection, including warnings, execution restrictions, and server log integration

3. Blocking Hacking and Modification Attempts

- Detects and blocks memory manipulation tools

- Blocks hooking/debugging attempts

- Restricts execution on rooted devices

- Provides security logs that can be linked to server sanction systems

Application Effects

After implementing LIAPP, the percentage of in-game auto-hunting and macro players significantly decreased, while game satisfaction and retention for legitimate users simultaneously improved.

- Reduced operational burden

- Increased detection rate of cheating

- Stabilized game economy

- Increased positive feedback from the community

Above all, we were extremely satisfied with the fact that the implementation of the security solution did not impact game performance or UX at all.

In conclusion

Maintaining a fair competitive environment is paramount in mobile game operations. Failure to prevent automated play in emulator environments could destabilize the entire gaming ecosystem.

LIAPP goes beyond simple detection to support execution control, environment monitoring, and security log provision, making it a highly effective security partner for mobile game operators.

We will continue to invest in security to create a safer and fairer gaming environment.

When it comes to game security, prevention is the best approach.

#LIAPP #LIAPP #MobileSecurity #GameSecurity #MobileGameSecurity #EmulatorDetection #EmulatorBlocking #MacroBlocking #AutomaticHuntingPrevention #BotBlocking #MacroBlocking #MemoryHackingBlocking #GameHackingBlocking #MobileHacking #AppSecurity #GameSecuritySolution #GameOperation #GameDevelopment #CheatPrevention #SecuritySolution #AppSecuritySolution #Semi-AutomatedSecurity #MaintainGameBalance #SecurityCase #SecurityIntroductionCase

Hello, game developers!

On Friday, August 15th, 2025, we're inviting LIAPP and L-Running All-End developers to celebrate BIC.
We've prepared a networking party 🎉 in Busan to celebrate BIC 2025!

Pre-register by clicking the button below, and we'll prepare your entrance badge in advance.
After the event, please come to Haeundae and spend a meaningful time with great people!

Eligibility: Anyone in the game industry! Date: Friday, August 15, 2025, 6:00 PM - 10:30 PM
Location: 25cm Skewers & Oden Bar Yukare Haeundae Branch (1-minute walk from Haeundae Station Exit 5)
Participation Fee: Free
What to Bring: A generous supply of business cards and a storybook
Registration: https://docs.google.com/forms/d/e/1FAIpQLSfQBXP3nK8pRi8I4RywXFwjRgwmbBVPim3r_zCg4D_4hWYD9w/viewform

Registration: https://docs.google.com/forms/d/e/1FAIpQLSfQBXP3nK8pRi8I4RywXFwjRgwmbBVPim3r_zCg4D_4hWYD9w/viewform

On the day We look forward to seeing you at the 25cm Skewers & Odeng Bar Yukare Haeundae branch! Thank you🍢😊

Protecting Mobile Game Revenues by Blocking Distribution of Cracked APKs, Introduction to LIAPP Application Cases

The mobile game market continues to grow every year and generates huge revenues worldwide. However, there is a fatal problem that hinders this growth: the illegal distribution of cracked APKs. Many game developers are seriously suffering from in-app payment revenues due to this, and it is even threatening the survival of the game.

Today, we would like to share a successful story of protecting game app revenues by focusing on the case of applying ‘LIAPP, a mobile security service’ to solve this problem.

What is a cracked APK?

A cracked APK refers to an app that was decompiled by a hacker and repackaged or redistributed with security disabled.

Most of these apps are illegally distributed for the following purposes:

• Bypassing in-app payments
• Removing advertisements
• Providing unlimited in-game resources (e.g. gold, diamonds, items, etc.)
• Inserting malicious code

Ultimately, normal users suffer losses and developers lose revenue.

Real losses due to bypassing in-app payments

The most important revenue model for mobile games is ‘in-app payments (IAP)’. Users can purchase desired items while enjoying the game or pay for quick growth. However, users using cracked APKs can enjoy all these benefits without going through the normal payment process.

In fact, a small and medium-sized game company experienced a decrease of more than 30% in total sales in a month after distributing cracked APKs, and faced a situation where normal users even left due to cracked files being indiscriminately shared in the community.

Preventing forgery and repackaging with LIAPP

In this situation, the game company introduced ‘LIAPP,’ a mobile app security service. LIAPP provides real-time forgery detection and repackaging prevention functions, thereby realizing the following security effects.

Key security features applied
1. APK forgery detection
 • Real-time file integrity verification, blocking execution of modified apps

2. Repackaging prevention
 • Identify abnormal packaging by verifying app signature integrity

3. Debugging prevention and rooting detection
 • Preemptively blocking hackers from analyzing or manipulating apps

4. App analysis tool detection
 • Detects and automatically terminates representative hacking tools such as Frida, Xposed, and Lucky Patcher

Effects after applying security

After strengthening security, game companies experienced noticeable performance improvements.

• Blocking illegal users by setting the app to automatically terminate when using cracked APKs
• Sharp decrease in sharing within the community as cracked files that were being distributed became useless
• Increased payment rate and return visit rate of normal users
• Improved reliability by announcing the fact of security enhancement

Above all, it was possible to kill two birds with one stone: sales recovery and user base stabilization.

Game security, join LIAPP!

As much effort was put into game development, it is also very important to safely protect the resulting app. In particular, for mobile games that rely on in-app payments as their main source of revenue, security is not an option but a must.

‘LIAPP’ is a global service that provides powerful security features with simple application without complex development knowledge.

I highly recommend that game developers who are concerned about the distribution of cracked APKs take a look at it.
Let’s protect the game we created together.

#MobileGame #GameSecurity #LIAPP #CrackAPK #In-AppPaymentProtection #AppSecurity #RepackagingPrevention #MobileSecurity

Encryption Application for Protecting PHI (Personal Health Information) – Case Study of Introduction of LIAPP

Today, we will share a case study of introducing ‘mobile security service LIAPP’ to safely protect ‘sensitive health information (PHI: Protected Health Information)’ such as ‘medical records, test results, etc.’

With the development of mobile healthcare services, we can now check not only hospital reservations but also health checkup results, treatment records, and prescriptions through apps. However, did you know that security threats are also rapidly increasing as such sensitive personal health information is digitized?

What is PHI?

PHI is an abbreviation for Protected Health Information, and as the name suggests, it refers to information related to an individual’s health.

For example,
 • Medical records
 • Health checkup results
 • Disease and prescription history
 • Medical imaging data
 • Insurance claim information

All of these are PHI. Since this information is directly connected to an individual’s privacy, if it is leaked, it can lead to serious damage.

How safe is PHI in the mobile environment?

Many healthcare apps provide in-mobile storage for the convenience of users, but what if data is stored on the device without encryption? There is a possibility that hackers can access it through malicious apps or that information can be leaked through rooted/jailbroken devices. Therefore, we must encrypt and protect PHI data within the app.

Case of applying PHI encryption using LIAPP

Our team recently built a system to safely protect users’ PHI data by applying ‘LIAPP’ to a mobile healthcare app.
LIAPP is an all-in-one mobile security solution that can strengthen in-app security, and is specialized in protecting apps from various threats.

Background of introduction
 • It was difficult to respond to the risk of data theft within the app with only existing security features.
 • In particular, since medical records, test results, and image data had to be stored within the app for a certain period of time, storage through encryption was essential.
 • At the same time, the user experience had to be maintained, so a security solution without performance degradation was needed.

LIAPP's main application points
 1. Encryption and obfuscation of important source code
    → We prevented the analysis of the important code of the PHI app through obfuscation and encryption.
        In other words, important data is encrypted in the app, and LIAPP protects the encryption logic from being analyzed.

 2. Prevention of app forgery and tampering
    → LIAPP detects forgery/tampering in real time while the app is running, and blocks execution in abnormal environments.

 3. Detection of rooting and execution restriction
    → We minimized the risk by blocking app execution on rooted devices or restricting access to specific sensitive information.

 4. Prevention of debugging and hooking
    → We minimized the possibility of PHI theft by blocking attack attempts using developer tools in advance.

What were the effects after applying LIAPP?

• Users' trust in protecting their personal health information increased.
• We also received excellent evaluations in security inspections and audits.
• The internal audit system was also improved to a structure that detects security issues in advance. What I was most satisfied with was that strong security was implemented without affecting the performance or UX of the app at all.

Now that digital healthcare has become a daily routine, PHI security is not an option but a must.

Especially in an era where sensitive medical information is distributed in real time through mobile devices, a comprehensive protection strategy that combines encryption and app security is important. We will continue to invest heavily in security so that users can use our services with confidence.

Mobile security, you can no longer put it off. Take the first step toward PHI protection with LIAPP. Thank you!

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“Infinite HP and Gold? Is that possible?” Case of blocking game variable manipulation with LIAPP revealed

When developing and operating mobile games, one thing becomes clear. Hackers always try to manipulate the game in new ways.
Among them, one of the most frequently attempted hacking methods is in-game variable manipulation. This is a method of destroying the game balance by arbitrarily changing important figures such as HP, gold, score, experience, and cooldown.

Most of this manipulation is done with tools such as Game Guardian and Cheat Engine. However, now, there is a way to detect and block such attempts in real time. It is through the mobile app security service ‘LIAPP’.

Today, we will introduce a case.

How do game variables manipulated with hacking tools work?

Tools that manipulate the game’s internal data work in the following way.

How to use Game Guardian / Cheat Engine:
 1. Scan variables (e.g. HP 100) that the game app has loaded into memory
 2. Find the address and manipulate it in real time (e.g. HP → 999999)
 3. Change variable values to enable abnormal play such as infinite health, infinite gold, etc.
 4. Repackage the app or perform automatic repetition through a script

This method is easy for anyone on a rooted device,
and can be fatally damaging, especially in single-player games or games with loose synchronization with the server.

LIAPP's real-time memory protection function

LIAPP is a security solution that goes beyond the level of general app protection and can detect and block memory modification that occurs during app execution in real time.

 • Memory integrity verification: Detects changes in the address and value of important variables while the app is running
 • Real-time hooking detection: Immediately blocks external tools when they access memory or attempt to change values
 • Suspicious process detection: Forces the app to terminate or block it when running GameGuardian, Cheat Engine, etc.
 • Automatic recovery: Initializes the app status or terminates a specific session when an abnormality occurs
 • Blocks rooted/jailbroken devices: Processes environments with a high possibility of memory manipulation as unexecutable

Actual application case: Mobile RPG game that blocks variable manipulation in real time

Idle RPG games that are popular in Korea were structured around a numerical growth system such as gold, experience points, and item drop rates.
However, immediately after the release, a post saying, "Easily manipulate gold with Game Guardian" spread through the user community, and the gap between normal users and hacking users rapidly widened.

Key Issues
 • Infinite gold manipulation → sharp drop in value of paid items
 • Emergence of PvP imbalanced users due to HP manipulation
 • Infinite skill cooldown manipulation → Balance collapse
 • Community complaints skyrocket and many refund requests

Response: Introduction of LIAPP and application of memory protection
 • Automatic termination of app when GameGuardian is executed
 • Application of memory integrity verification for important variables (HP, gold, experience points)
 • App log recording and automatic reporting in case of hooking attempt
 • Activation of rooting detection and security warning message output function

Results
 • Blocking of over 95% of manipulated users
 • Recovery of app market review rating (★2.9 → ★4.4)
 • Increase in positive feedback such as “hacking doesn’t work” and “security is great” on the official cafe
 • Recovery of over 30% of paid item sales

The vitality of a game starts with blocking variable manipulation

It is difficult to make a game completely free from hacking, but the fairness and profitability of the game can be noticeably improved simply by protecting key figures from being manipulated. LIAPP's real-time memory protection technology goes beyond simply preventing hacking, and is the core of security that protects the game's lifespan, user trust, and sales stability.

Game security, can't be delayed any longer

"I'm playing a game alone, so can I use hacks?" That's not true. Hacking is not something you do alone, but an act that destroys a fair ecosystem.
In an era where a single hacker's manipulation script spreads to thousands of people, the answer is now not post-response, but preemptive blocking.

LIAPP blocks hackers before they even touch your memory. With real-time detection, tampering blocking, and powerful hooking prevention, it will be the weapon that protects your game the safest.
LIAPP's fair game world, start now.

#LIAPP #LIAPP #Mobile game security #Memory tampering prevention #GameGuardian blocking #CheatEngine blocking #Game hack prevention #Real-time security #App integrity #Variable manipulation blocking #RPG security case #Game security #App security solution

"Is this coupon real?" Introducing a case study on preventing payment forgery and reward abuse with LIAPP

In the digital transformation era, O2O (Online to Offline) services have become deeply embedded in our daily lives. From delivery apps, taxi calls, accommodation reservations, to shared mobility—most O2O platforms offer benefits such as discount coupons, accumulated points, and promotional rewards to attract users. However, this is where security vulnerabilities arise. There are endless cases of some users or hackers modifying apps or manipulating rewards to infinitely repeat discounts or forge points.

To prevent such financial losses and system abuse, there is a solution that many O2O companies have chosen. It is the 'mobile security service LIAPP'.

Today, we will introduce in detail a case study where payment forgery and reward abuse were actually prevented through LIAPP.

Common reward abuse methods in O2O services

The method of exploiting O2O apps is not technically difficult. Anyone with a publicly available rooting tool or memory manipulation app can do the following:
 • Use discount coupons repeatedly
 • Unlimited payments through point manipulation
 • Attempt to cancel payments by blocking the network after app payment
 • Repeatedly execute reward payment routines to create unlimited points
 • Disable specific event conditions by modifying app code

These actions can cause losses of millions to tens of millions of won for even a single user, destroy fairness between users, and have a major impact on brand reliability.

LIAPP, a powerful security solution for O2O apps

LIAPP is a security solution that can be easily applied within mobile apps,
providing various abnormal behavior detection and blocking functions that can occur on the client side.
In particular, it has optimized protection functions for reward manipulation, payment forgery, and coupon abuse that frequently occur in O2O services.

Key security features
 • Memory manipulation detection: Detect attempts to change memory values at runtime
 • Rooting detection and blocking: Restrict app execution on jailbroken/rooted devices
 • Debugging and hooking blocking: Prevents analysis in advance using Frida, Xposed, etc.
 • Integrity check: Checks for app code modification and automatically terminates the app
 • Network bypass detection: Detects arbitrary blocking or modification of communication with the payment server

Actual application case: Prevents coupon/point abuse

A domestic mid-sized franchise-based delivery O2O platform has been suffering from coupon abuse and point manipulation issues since its service launch.

Problem situation
 • New member coupon 5,000 won → Rooting users repeatedly create new accounts and use coupons infinitely
 • Referral reward system → arbitrarily changes the referral number by manipulating the app
 • A specific hacker manipulated points from 0 to 10,000 to complete payment

As a result, reward financial losses amounting to tens of millions of won per month occurred, and internal audits were unable to track all related activities.

Countermeasures: Introduction of LIAPP
 • Implemented rooting detection and execution blocking functions in apps
 • Strengthened memory integrity check when granting/using points
 • Encrypted and prevented hooking of referral system access functions
 • Automatically terminated app after debugging detection when applying coupons

As a result
 • Blocked more than 90% of malicious rooting users
 • Reduced number of cases of point manipulation to 0
 • Sharp decrease in inquiries about coupons and objections through customer service center
 • Stabilized operation of reward system

Will there be no inconvenience for users? Business can continue only when security is maintained

Many security systems have difficulty maintaining a balance between enhanced security and user convenience.
However, LIAPP is designed to apply real-time security with minimal performance load so that general users can use the app without any inconvenience.
In addition, even in cases where abnormal behavior is determined, guided security responses are possible through warning messages or execution restrictions within the app.

As the number of users of O2O services increases, security threats also increase exponentially. Even if just one reward exploitation routine is discovered, malicious users who replicate it will increase in an instant. Now, a security strategy that focuses on preemptive blocking, not post-response, is essential. LIAPP is an advanced mobile security solution that detects real-time threats and blocks malicious behavior before it even occurs.

Are you still putting the security of your O2O app on the back burner? Now, completely block payment forgery and reward abuse. LIAPP protects your business profits.

#LIAPP #LIAPP #MobileSecurity #O2OSecurity #CouponAbusivePrevention #PointManipulationPrevention #PaymentForgery #SecuritySolution #RewardSystemSecurity #AppSecurity #EventAbusivePrevention #FranchiseAppSecurity #MobileRewardSecurity #HackingPrevention

Mobile game hacking, preventing it from even starting! Introducing a case of blocking debugging tools with LIAPP

If you are a mobile game developer, you may have heard of debugging tools such as Frida, Xposed, and Magisk. And you probably know that these tools are the starting point of game hacking.

Attempts to analyze game code, manipulate resources, or create illegal tools (so-called 'hack tools') using these tools are becoming increasingly sophisticated. However, now, these attempts can be blocked before they even start. That is, through the 'mobile app security service LIAPP'.

Today, we will introduce a case of actually applying debugging tool detection such as Frida and Xposed to a mobile game app and preventing the creation of hacking tools in advance.

Where does game hacking start?

Most hack tool productions for mobile games follow the following flow:
 1. Hooking apps using Frida or Xposed Framework
 2. Monitoring and manipulating function calls in real time
 3. Tracking and manipulating game internal variables
 4. Automating with cheat apps or hack tools

In other words, hack tool production is impossible without prior analysis using debugging tools.

So what can you do? If you detect and block debugging tools themselves so that hackers cannot analyze them at all, you can completely block the first gateway to game security.

LIAPP's debugging tool detection function

'LIAPP' is a mobile app security solution introduced by numerous domestic and foreign game companies, and is designed to detect and block various security threats in real time when running apps.
One of its core functions is the debugging tool detection and blocking function.

Representative tools that LIAPP can detect and block:
 • Frida
 • Xposed / LSPosed
 • Magisk and Magisk modules
 • Attempts to link with reverse tools such as Jadx and JD-GUI
 • Activation of ADB debugging session
 • All runtime debugging/hooking tools

Blocking method:
 • Immediately blocking app execution on devices where the tool is installed
 • Automatically terminates when abnormal processes or libraries are detected
 • Memory protection and real-time hooking defense
 • Warning message output or forced termination of app when entering app debugging mode

Practical application case: Preventing hacking in advance by blocking debugging tools

A famous domestic strategy RPG game company detected abnormal behaviors such as automatic battle, infinite goods, and cooldown removal through user analysis from the beginning of its launch, and confirmed that most of them were caused by Frida-based hacking tools.

To solve this, we applied LIAPP's debugging tool blocking function.
Application items:
 • Force-terminate the app immediately when Frida and Xposed are detected
 • Automatically block ADB debugging and rooting status
 • Real-time scan for tool installation when running the app

Results:
 • A sharp decrease in the number of automatic hunting bot users in the game
 • Reactions such as "hacking blocked" and "Xposed does not work" in Google Play reviews
 • Many reports of failed hacking of the game in the illegal tool production community

In other words, it was a successful security application case that prevented even attempts at game hacking.

If security is weak, the game's lifespan is shortened

Mobile games are not just entertainment, but also a digital content business that affects sales, brand, and user community.

However, the moment hackers are allowed to analyze them, the following risks may arise:
 • Ineffectiveness of inducement items → Sales decrease
 • Collapse of fairness between hacking users and general users → Increase in defection
 • Loss of community trust → Damage to the game brand

Therefore, security is not an option, but an essential element that must be prepared before launch.

Just by blocking the debugging tool analysis that is the beginning of game hacking, you can block numerous security threats in advance.
The debugging tool detection function of ‘LIAPP’ blocks hackers from entering the game itself, protecting the game’s fairness, sales stability, and brand image at the same time.

The success or failure of a game depends on security. Protect your game with LIAPP right now.

#LIAPP #LIAPP #MobileSecurity #DebuggingBlocking #FridaDetection #XposedBlocking #GameCheatPrevention #MobileGameSecurity #AppSecurity #ReverseEngineeringBlocking #GameSecurityCases #HackToolBlocking

Application of LIAPP, a mobile app security service that prevents financial fraud through app forgery and malware blocking

These days, we live in an era of mobile finance where we can transfer money, get loans, and invest with just a smartphone without going to the bank. The development of these fintech services has made finance easier and faster, but at the same time, it is not safe at all in that it has become a major attack target for hackers. In particular, in recent years, cases of illegal remittances or personal information theft attempts on user terminals through app forgery, repackaging, and malware insertion have been rapidly increasing.

In this post, we will examine the importance of mobile security by focusing on a case where a fintech app introduced a mobile app security service called ‘LIAPP’ to block actual security threats and maintain service trust.

Actual case: Illegal remittance attempt through forged app

Fintech company A was a startup that was rapidly expanding its user base by providing functions such as easy remittance between users, analysis of expenditure history, and integrated management of linked accounts. It was especially well-received by the younger generation for its intuitive UX/UI and convenient authentication system.

One day, a suspicious report came into the customer center. The user claimed that an unknown remittance history had occurred in his account. The company investigated the internal security log and discovered that the transaction did not go through the normal app route. Soon after, the security team discovered that the APK file was being distributed in a falsified form. The hacker had hijacked the original app, inserted malicious code into it, and repackaged it to create a fake app. This app had the same UI as the original app, but it was stealing user information in the background and sending remittance commands to a random server.

This incident was a warning to fintech startups that a single security vulnerability could destroy their entire credibility.

Introducing LIAPP: Real-time forgery detection and automatic blocking

To solve the problem, the company chose ‘LIAPP, a mobile app security service.’
LIAPP is not a simple security SDK, but rather a cloud-based integrated security platform. It detects and blocks various threats that may occur within the app in real time from the time the app is launched until the user terminates the service.

Main security features of applied LIAPP:
1) Detection and blocking of forged APK
   • Immediately stops execution if the app file is different from the original
   • Identify code or malicious library inserted by hackers and block app execution

2) Detection of repackaging (resigning)
   • Classifies suspicious apps due to repackaging and collects logs
   • Blocks execution of suspicious apps due to repackaging

3) Detection and blocking of rooting environment
   • Restricts app execution on rooted devices
   • Prevents malicious behavior through privilege escalation

4) Blocks debugging and hooking attempts
   • Blocks hackers from analyzing or manipulating the inside of the app
   • Real-time detection of proxy tools, memory modification, etc.

5) Real-time log collection and analysis of security events
   • Status of malicious behavior detection can be checked on the administrator page
   • Pattern analysis by IP/terminal for suspicious events

After applying LIAPP, distributed forged apps were blocked immediately upon execution, and existing user apps were also automatically updated with security updates. As a result, illegal remittance attempts through malicious apps were completely stopped, and measures were taken to prevent user damage from spreading.

App security is not an option, but a ‘necessary strategy’

Many startups focus on developing features and acquiring users, while security is often put on the back burner. However, in financial services, **security is a ‘basic premise’ that is more important than the features themselves**.

This case was not a simple hacking attempt, but a serious accident that undermined trust. Fortunately, thanks to a quick response and a strong security solution, the company was able to restore trust, and it is said that customers’ positive evaluations of security enhancements have increased after this incident.

“Security is not something inconvenient, but another name for trust.” This fintech app case proves this saying.
In an era where tens of millions of won worth of assets are transferred through a single app, hacking can occur in just a few seconds, but it can take years to rebuild trust.
Is the app you are currently operating safe? The answer starts with introducing a strong and reliable mobile security solution.

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No more unauthorized leaks of game premium content!

Introducing a case of blocking screen capture and recording with LISS

When playing a game, premium content such as paid stories, limited illustrations, and strategy information that can only be viewed after payment often appears. From the developer's perspective, such high-quality content is a key element that creates the game's revenue model and brand value.

These days, premium content provided through mobile apps is becoming more diverse and sophisticated. In particular, in game apps, there are many contents that are used as elements to induce users to pay, such as paid stories, high-quality illustrations, and high-quality strategy information. However, cases of unauthorized leaks of such content through screen capture or screen recording are constantly occurring, and developers are increasingly concerned about security.

Today, we will introduce an actual application case of 'mobile app security service LISS' that solved these concerns. This is a case where illegal leaks of premium content were effectively blocked through LISS's screen capture and screen recording blocking functions.

Unauthorized capture and video leak of paid content

The method of leaking paid content is simpler than you think.
All you have to do is save the game screen with the smartphone's basic capture function or record the screen using an external app, and share it on SNS, communities, video platforms, etc.

The problem starts here.
 • Paid story leak: Content can be viewed without paying → Damage to revenue structure
 • Illustration leak: Loss of rarity → Reduced incentive for users to pay
 • Strategic information leak: Collapse of competition structure → Damage to game balance
 • Risk of design theft: Copyright infringement by a third party using captured images or videos

In other words, a simple screenshot or video can destroy the game ecosystem.

LISS's screen capture/recording prevention function

'LISS' is a powerful app security service developed by Lockin Company, a mobile application security specialist. It blocks security threats to various apps including games in real time and provides various functions to prevent unauthorized content leaks.

Among them, the following two features are particularly noteworthy:
1) Screen capture blocking
   • Disable basic capture functions (Fn+Power, 3-finger capture, etc.)
   • Block external capture apps (e.g. Screenshot Easy, AZ Screen Recorder, etc.)
   • Automatically black screen when sensitive content is exposed

2) Screen recording prevention
   • Automatically terminate or blackout the app when screen recording is detected
   • Detect Google Play game recording, Discord overlay, and streaming tools
   • Provide warning messages when users and hackers attempt to record screens

These features are more practical in that they can be set in detail to apply only to sensitive content areas within the game client.

Real-world application case: Introduction of LISS to protect paid content

A famous domestic RPG game developer recently experienced an incident where the paid story and advanced illustrations of its game were leaked in large quantities through a video platform. Some users were consuming the content thinking, “I can just watch the video without paying,” which directly led to a decrease in sales.

Accordingly, the developer introduced LISS and took the following measures:
 • Screen capture/recording prevention settings for the story playback section and illustration viewer functions
 • Automatic forced termination function applied when screen recorder is detected

As a result, the number of leaks decreased sharply, and the community also experienced real security effects with responses such as "Capture is not working" and "Video recording is blocked?"

Isn't it inconvenient for users?

Some users responded by saying, "Why can't I capture the screen?" and "I tried to share it, but it doesn't work." However, this inconvenience is within the acceptable range as it is a device to protect the value of game content and provide the same experience to all users.

About a month after applying the security feature:
 • The number of leaked images and videos uploaded in major communities decreased by more than 90%
 • Improved awareness through user feedback: "Content protection feels more thorough", "I trust the game"
 • Internally, we gained confidence based on security in content marketing strategies and paid product composition

As a result, applying the security feature was more than just 'blocking'. It has become an important means of protecting the value of premium content and increasing brand reliability.
Above all, since the capture/recording blocking function is applied only to paid content sections, it has little effect on general play.

Rather, it provides a sense of trust and satisfaction that "only those who have paid properly can enjoy the content."

Paid content in games is not just graphics or videos. It is the fruit of the efforts and creations of numerous developers, and a promise to users. Protecting such content from unauthorized leaks becomes more complete when technical protection measures are combined with legal protection.

The value of mobile content can be properly protected when security is supported. In particular, app services that aim to monetize premium content require even more thorough preparation.

Why LISS?

LISS is chosen by many companies for the following reasons:
 • Provides features specialized for mobile content security, such as screen capture/recording prevention
 • Real-time monitoring with a cloud-based dashboard
 • Cross-platform compatibility supporting both Android and iOS

LISS's screen capture and recording blocking features are not simply technical features, but strategic choices that protect the value of premium content. At the same time, it is a realistic solution that helps mobile game companies strengthen content security and protect their brand value.

Check out LISS right now, the security that protects the value of creation.

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Strengthening User Authentication of Electronic Civil Service Apps Mobile App Security LIAPP Application Case

Electronic Civil Service Apps, Security is Life – User Authentication Made Stronger with LIAPP

Have you ever used electronic civil service services? Various public agency apps such as Government24, Citizens’ Archive, and Civil Service24 have now become essential services in the daily lives of citizens. However, since they handle sensitive personal information and administrative information, strong security is vital. Recently, the number of public institutions applying ‘mobile security service LIAPP’ to strengthen user authentication of these electronic civil service apps is increasing. In particular, the role of LIAPP, which protects the login process through the security keypad, is attracting attention.

Today, we will take a closer look at the application cases and how LIAPP protects our information.

Why is electronic civil service app security important?

Electronic civil service apps go beyond simple information search and provide important administrative services such as issuing resident registration copies, paying taxes, and filing civil service applications. In this process, they have a structure that is easily exposed to security threats such as personal information leaks and authentication forgery.

In particular, the following threats exist due to the nature of smartphone-based app services.
 • Access from rooted/jailbroken devices
 • Memory hacking through malicious apps
 • Information theft through screen capture
 • Input value theft from the security keypad

To respond to these threats, mobile app security is what is needed.

What is LIAPP?

LIAPP is a global mobile security service developed by Lockin Company, a mobile application security specialist. LIAPP is designed to detect security threats in real time when the app is running, protect the app from malicious behavior, and safely process authentication information.
The main security features are as follows:
 • Prevention of app forgery and modification
 • Detection of rooting/jailbreak
 • Prevention of memory hacking
 • Protection of security keypad
 • Screen capture blocking
 • Detection and prevention of debugging
 • Application of real-time security policies

Cases of LIAPP applied to public institutions

LIAPP has recently been introduced to electronic civil service apps operated by several central government agencies and local governments. They are especially focusing on LIAPP in the user login screen and the security keypad input section, safely protecting the core section of user authentication.

Strengthening the login security of the civil complaint app
A public institution was operating a structure in which a user ID and password were entered using a security keypad when logging into the civil complaint app. However, there was a problem that this input process was vulnerable to screen capture or key input hacking.

Therefore, by applying the security trio LIAPP, LIKEY, and LISS of Lockin Company, the following security effects were achieved:

 • Screen capture and screen mirroring blocking
 • Debugging and reverse engineering detection blocking
 • App execution blocking on rooted devices

As a result, the possibility of civil complaint information leakage was significantly reduced, and service reliability was significantly increased.

Changes in security felt from the user's perspective
Apps with LIAPP, LIKEY, and LISS applied provide a noticeable sense of stability from the user's perspective. Although the security keypad operates slightly differently from the general keypad and screen capture is blocked, which may cause some inconvenience, these are essential protection devices to protect the user's personal information. Above all, users can use the app with confidence, and public institutions are also seeing the effect of greatly reducing the risk of security accidents.

How safe is the civil service app you use?
In the digital age, civil service services can be easily used with smartphones. However, behind convenience, thorough security must be supported.
The mobile security service ‘LIAPP’ is a strong guard that ensures that electronic civil service apps can be used with confidence. We hope that more public institutions will adopt this security technology in the future so that all citizens can experience trustworthy digital administrative services. It is also an important attitude as a digital citizen to pay attention to whether public service apps have enhanced security.

#Electronic civil service #Security keypad #User authentication #LIAPP #LIAPP #Mobile security #App security #Public app security #Security login #Rooting detection #Screen capture blocking #Electronic government

Preventing Mobile Game Cheating by Blocking Rooted Devices Application Case of Mobile App Security LIAPP

A Choice for Fair Gaming

Anyone who has experience developing or operating a mobile game has probably been concerned about the issue of ‘cheating’ at least once. Cheating that breaks the game balance, gives unfair advantages to other users, and ultimately destroys the trust of the entire game community.

The most representative method among them is system hacking using rooted devices.

Today, we will introduce a real case where we introduced ‘mobile security service LIAPP’ to solve this problem and applied rooting detection and execution restriction functions to effectively block cheating.

What is a rooted device? Why is it dangerous?

Rooting generally refers to an act in which a user (or hacker) directly acquires system privileges of the Android operating system (OS) that are restricted by the manufacturer or carrier. Rooting causes the following risks:

• Modification of system files and security policy bypass
• Free execution of cheating tools or memory hacking apps
• Manipulation of internal data of game apps or encryption bypass
• Bypassing in-app purchases, creating unlimited resources using hacking tools, etc.

In other words, it is no exaggeration to say that any security device can be breached on a rooted device.

Real-life case: Spread of cheating in a rooted environment

As a result of tracking the logs, commonalities were revealed:

• Execution on a rooted device
• Use of memory manipulation tools
• Forgery of internal scripts and asset data

Ultimately, they were cheating by manipulating game resources in a rooted environment without permission to achieve rapid growth and high rankings, widening the gap with normal users.

Successful blocking of cheating by introducing LIAPP

The game company in question recognized the seriousness of the situation and quickly introduced **LIAPP, a mobile app security solution**.
LIAPP provides various security features optimized for mobile games, and is particularly strong in rooting detection and execution restriction functions.

Applied security features
1) Rooting detection and app execution blocking

• Automatically blocks apps when running on rooted devices
• Precisely detects rooting traces such as su binary, BusyBox, and Magisk
• Detects rooting bypass attempts and completely blocks them

2) Detection of cheating tools and hacking apps

• Detects popular cheating tools such as GameGuardian, CheatEngine, and Lucky Patcher
• Immediately terminates the app or displays a warning when a hacking tool is detected while the app is running
• Records cheating attempt history on the server → Used as a basis for user sanctions

3) Added user response logic for abnormal environments

• Provides users with the reason and induces recovery when rooting is detected
• Minimizes backlash with flexible security UX configuration rather than disabling the app

Developer interview
“In the past, one cheater could shake up the entire server. Now, after introducing LIAPP, that risk has almost disappeared, and the operation team can focus on its original role.”

Changes after applying security

About a month after applying security, there were the following positive changes:

• 100% blocking of cheating attempts based on rooted devices
• Increased satisfaction of normal users due to sanctions on hacking users
• Recovery of game ratings, increased reliability on Google Play Store
• Many favorable comments on “securing fairness” in the community and SNS

Above all, the biggest achievement was that it laid the foundation for normal users to stay longer without leaving.

Security is the first step toward fairness

In mobile games, ‘fun’ and ‘competition’ are inseparable elements. However, if the basis of competition is unfair, the game will never last long. In particular, rooting and cheating are very dangerous elements that can lead to not only loss of sales for a company, but also loss of normal users and damage to the brand image.

LIAPP can be applied quickly without complex development, and it is a smart choice that can build a security ecosystem for the game by combining various security features.

Real security is blocking the entire cheating environment, rather than blocking one cheating user. As in the case introduced today, the fairness and user experience of the game can be greatly improved with just the rooting detection and execution restriction functions. If you are a mobile game operator, take your security to the next level right now with ‘LIAPP’.

#LIAPP #Mobile game security #Rooting detection #Cheating prevention #Game hacking blocking #App security case #Fair game environment #Game operation tips #Security solution #Cheater blocking

How did we prevent the online casino token theft incident?

Case of online casino threat response through LIAPP

Recently, as the online casino industry has grown rapidly, countless users around the world are enjoying games conveniently on their smartphones. However, behind the convenience, there are always security threats directly related to money. In particular, tokens or points that can be converted into cash within the game are the main targets of hackers.

Today, we will introduce a token theft incident that actually occurred in an online casino app and share the specific response process of how we strengthened security by applying the ‘mobile security service LIAPP’.

Incident Overview: Token theft and blackmail

A serious security incident occurred in a famous online casino app. Hackers used the app’s vulnerable security structure to analyze and manipulate the internal logic, thereby unauthorizedly generating millions of game tokens. These tokens were assets that could be converted into cash within the platform, resulting in damages worth tens of millions of won. After the incident, the hacker sent a threatening message to the operator based on this, which caused the company to suffer a triple whammy of service interruption, legal action, and loss of user trust for a while.

Cause of security deficiency

At the time, the app had the following security vulnerabilities:

• Game logic exposed within the client (easily analyzed when decompiled)
• Token processing logic exposed in memory, real-time value manipulation possible
• Lack of detection function for forgery/repackaging of the app
• App can be run on rooted devices, hacking tool detection insufficient

These weaknesses provided the perfect attack environment for hackers, and were actually exploited by manipulating memory values ​​to create an unlimited number of tokens.

Response through application of LIAPP

After the incident, the company quickly took security measures and introduced LIAPP, a specialized mobile app security service. LIAPP performs various security functions in real time on the client side to prevent asset attacks such as token theft.

Application of key security features

1) Forgery prevention and integrity verification

• Blocks execution if the app has been tampered with or repackaged
• Checks the integrity of the app code to detect externally inserted code
• Neutralizes attack attempts such as signature forgery or malicious module injection

2) Real-time memory protection

• Protection for values ​​that can be manipulated in real time, such as game tokens
• Detection and termination of memory hacking tools (GameGuardian, CheatEngine, etc.)
• Blocks hackers' attempts to modify memory with real-time protection for internal variables

3) Rooting and hacking tool detection

• Restricts app execution after detecting rooted devices, debugging tools, and reversing tools
• Neutralizes attacks by automatically terminating the app in an environment where hacking tools are running

4) Client logic obfuscation and code encryption

• Protects core game logic from analysis
• Blocks reverse engineering by preventing decompilation

Effects after applying security

After applying security, the casino app experienced the following noticeable changes:

• 100% blocking of token manipulation attempts
• Obtaining hacking tool detection logs → Strengthening response
• Real-time blocking of app analysis/modification attempts → Unauthorized users Block
• Restoring users' trust and normalizing usage
• Securing a favorable foundation for responding to overseas operating regulations and security audits

Above all, it is significant in that the awareness that "asset that can be converted into cash must be protected" has become clear and practical security measures have been prepared to realize this.

Online casino apps are not just games, but digital financial platforms where real assets are traded. Therefore, security is not an 'optional' but a survival condition for business continuation.
A single security incident like this case can destroy trust built up over the years. However, if you apply the right security strategy and solution, you can regain trust and be reborn as a stronger service.

LIAPP is a security service that is absolutely necessary in app environments where assets are traded, such as online casinos, games, and fintech.
Hackers may be targeting your app at this very moment. Take preventive measures, start now.

#OnlineCasinoSecurity #LIAPP #TokenTheftPrevention #MobileAppSecurity #ForgeryDetection #MemoryProtection #ReverseEngineeringPrevention #CasinoAppSecurity #MobileAssetProtection #GameSecurity

Public bicycle app, is user personal information safe?

Introduction to personal information protection case through LIAPP

These days, public bicycle service is easily available all over the city. Many people use it because anyone can rent a nearby bicycle with a mobile app and move around easily. However, did you know that behind this convenience, there is a security threat of user personal information leakage?

Today, we will introduce a real case where the mobile APP security service LIAPP was introduced to protect personal information of public bicycle apps and storage data encryption and forgery detection security were applied.

Personal information leakage is not someone else's problem

Public bicycle apps collect and process various information in addition to simple rental functions. For example:

• User basic information such as name and phone number
• Payment method information (card registration, simple payment, etc.)
• GPS-based usage location and movement route
• Rental/return history and time zone analysis information

Most of this data is processed through in-app storage or communication with servers, and if security is not properly applied, there is a high risk that it can fall into the hands of hackers. In particular, data stored on the terminal requires thorough protection, as the device can be easily accessed by hijacking or rooted devices.

Security features applied through LIAPP

The public bicycle operator introduced the mobile app security service LIAPP to better protect users' personal information. LIAPP is a security SDK that can be easily integrated into the app, and can detect and automatically respond to various threats when the app is running.

1. Code obfuscation, encryption

By encrypting all user information stored in the app (e.g. login information, recent rental history, etc.), the following security is achieved:

• Blocking access through rooted devices or decompilation tools

2. Detection of app forgery and integrity

• Automatically detects and blocks execution when the app is modified or repackaged and malicious code is inserted
• Prevents hacker analysis through hacking tools, debugging tools, and rooting detection
• Blocks personal information theft through unauthorized malicious versions at the source

Effects after application

The operating company achieved the following improvements after applying LIAPP security:

• 100% detection and blocking of information access attempts using hacking tools
• Automatic termination of app execution in rooted devices and abnormal environments
• Increased app ratings and usage rates due to improved user trust
• Easier response to security certification from public institutions

In particular, it is drawing attention as a case that preemptively took technical protection measures in line with the recent strengthening of the Personal Information Protection Act and the strengthening of security audits by administrative agencies.

Personal information protection is now a necessity, not an option

Security threats to mobile apps are becoming increasingly sophisticated. Especially for apps connected to public services or social infrastructure, security is a task that must come first in order to secure social responsibility and trust.
LIAPP is a cloud-based security solution that can be applied quickly without complex development, and is already being used in numerous public institutions, financial institutions, and utility apps.

In conclusion

For services that citizens use on a daily basis, such as public bicycle apps, trust in security is the lifeblood of the service. Isn't providing a safe data environment, beyond providing convenience to users, the key to true digital transformation?

LIAPP will be a strong partner that protects your app from hacking threats and protects user personal information.

#PublicBicycle #MobileSecurity #LIAPP #AppSecurity #PersonalInformationProtection #DataEncryption #ForgeryDetection #PublicAppSecurity #MobileSecurityCase

Introduction to the application of mobile app security LIAPP for used car price data protection

As the used car market becomes digitalized, app-based used car price comparison services are growing rapidly. While it provides convenience to consumers and new opportunities to businesses, it also increases the risk of price algorithms or internal data being leaked to the outside.

Today, we will introduce a mobile security application case of a used car platform company that effectively responded to these risks. This company safely protects important data by applying code encryption and SSL Pinning through a mobile security service called **LIAPP**.

Why does used car price data need protection?

The core of a used car app is ‘accurate and reliable price information.’ In order to create this data, complex algorithms and internal databases that reflect transaction history, region, model year, mileage, and market trends are required.

However, if such core information is included in the app without protection, it is exposed to the following threats:

• Reverse engineering of the price algorithm
• Interception of API communication and data collection
• Mass crawling through unauthorized apps or bots
• Unauthorized data collection and imitation of competitors

This can lead to problems such as loss of competitive advantage, collapse of the revenue model, and decrease in trust.

Security application through LIAPP

To respond to these threats, the company introduced a mobile security service called **LIAPP**. LIAPP is a cloud-based service that provides powerful security features with just a simple SDK application.

Applied security features

1. Code encryption

• Encrypts code areas containing core logic and algorithms to prevent decompilation and reverse analysis
• Blocks hackers from figuring out the internal structure or replicating the algorithm

2. SSL Pinning

• Prevents man-in-the-middle attacks (MITM) by fixing certificates in the communication section with the server
• Blocks API eavesdropping and data leakage using proxy tools (Fiddler, Charles, etc.)

3. Rooting and hacking tool detection

• Restricts app execution when a rooted device or hacking tool is detected, blocking the possibility of data leakage

4. Repackaging and forgery detection

• Detects in real time whether the app has been tampered with or repackaged, and blocks execution

Changes after applying security
After applying security, the used car platform experienced the following noticeable effects:

 • Reduced attempts to expose internal algorithms
 • Blocked attempts to call illegal APIs
 • Automatically detects and responds to attempts to analyze apps
 • Reduced cases of data imitation in competing services
 • Increased reliability of the platform

In particular, SSL Pinning was used to collect data from outside With crawling attempts completely neutralized, stable service operation centered on normal users has become possible.

User experience intact, security stronger

Many people worry that introducing a security solution will affect the user experience. However, LIAPP operates in a way that strengthens backend security without affecting the user UX. Security settings are easily maintained even when the app is updated, and the management burden on developers is not large.

We live in an era where digital assets are the competitiveness of a company. In particular, sensitive data such as used car prices are the core value of a business in themselves. No matter how excellent a service is, it is difficult to maintain its value if security is lax.
LIAPP is a service that can further strengthen the security of mobile apps without complex settings, helping you focus on your business without worrying about data leaks.
If you are operating a used car app or need to protect internal algorithms and data, consider introducing LIAPP right now.

#UsedCarApp #DataSecurity #LIAPP #SSLpinning #MobileSecurity #CodeEncryption #AppSecurity #PriceAlgorithmProtection #CrawlingBlocking #MobileSecuritySolution

How should we protect the core asset of educational apps, ‘dictionary content’?

If you look at the smartphone screens of children these days, the next thing you see the most after games are educational apps. In particular, learning apps based on digital dictionaries that help develop vocabulary in English, Chinese characters, and Korean are widely used by children from toddlers to middle and high school students.

However, there is one major concern for those who create such educational apps. That is, the dictionary content contained in the app, or the **knowledge database (DB)** that has been developed and refined for many years, is being leaked or copied without permission. This is more important because it is a problem that goes beyond simple copyright infringement and is directly related to the survival of a business. So how can we safely protect such important data?

Today, we will discuss one of the answers, **mobile app security service LIAPP**.

Security threats to educational apps seen through real cases

Recently, a domestic education startup company A launched an English vocabulary learning app that it had spent a long time developing. The core of this app was a self-built dictionary DB containing tens of thousands of words and example sentences. It was premium content directly composed by professional teachers and linguists, not using general portals or open APIs.

It was initially successful by word of mouth, but after about 3 months, a strange phenomenon occurred.
The inflow from search ads on a portal site decreased sharply, and app reviews started to mention that "similar apps are cheaper."
The investigation revealed that the dictionary DB file was extracted from within the app and used in another app. The app in question even slightly changed the UI and used the same examples, pronunciations, and explanations.

Company A was shocked and immediately worked with a security company to supplement the entire app.
The solution introduced at that time was **LIAPP**.

How does LIAPP protect educational apps?

1. Mobile app forgery prevention
LIAPP prevents hackers from modifying or repackaging apps at will through app forgery detection and blocking functions.
As in the above case, attempts to disassemble and manipulate the app to extract the dictionary DB are mostly detected at this stage and the app itself is blocked from running.
LIAPP also provides a function to block execution on rooted devices.
This is something that general security apps tend to overlook, but in a rooted environment, apps easily cross the security boundary, increasing the possibility of unauthorized access.

2. Source code obfuscation and encryption
Ordinary app developers create apps in languages ​​such as Java or Kotlin and package them as APK files.
However, APKs can be easily reverse-engineered to check internal codes or resources.
LIAPP obfuscates the app's source code, making it difficult to read the code, hindering analysis, and encrypts important logic or data to protect actual information from being exposed.
For example, Company A's dictionary app included a DB with the structure of 'word ID → definition → example sentence' inside the app, and this DB itself was encrypted and stored through LIAPP, making it impossible to interpret the DB itself even if the APK was hacked.

Protecting educational content is no longer a 'choice' but a 'must'

Many educational app developers tend to put security aside as they initially focus on implementing functions. However, as content accumulates and the number of users increases, the content becomes a target.

 • Self-developed content
 • Voice and pronunciation data
 • Native speaker commentary video
 • Word classification algorithm

All of these are competitive and at the same time, targets of protection.

LIAPP not only provides a technical barrier for security, but also provides an automated service that allows developers to easily protect apps without having to write complex security codes separately. Thanks to this, even educational startups and small and medium-sized businesses can use it without burden.

The greater value of LIAPP - 'Trust'

The most important thing is that security leads to user trust.
When parents choose an educational app for their children, in addition to simple UI or price,
they consider "Is this app trustworthy?" and "Is personal information or content safe?" In fact, since implementing LIAPP, Company A’s app has obtained a security certification badge from the app store, and has been used as a basis for proving its reliability in partnerships with schools and educational institutions.

Educational apps start with ‘content security’

Education in the digital age is a **‘content war’**.
As much as creating good content, protecting that content is important.
If you are operating a content-centered education service such as a dictionary-based education app, vocabulary enhancement tool, word game, or foreign language learning app,
Consider introducing a mobile security solution like LIAPP today.
Security is not a cost, but an insurance policy for the survival of content.

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How to prevent data leaks from in-house business apps? The story of Company B that solved the blind spot of employee terminal security with LIAPP

As of 2025, many companies are developing and operating various in-house business apps as they pursue digital transformation.
Mobile-based business apps have the advantage of allowing employees to work conveniently anytime and anywhere, but they also have the disadvantage of always being exposed to security threats.
In particular, in the BYOD (Bring Your Own Device) environment where employees use in-house apps on their personal smartphones (Personal Devices), the risk of confidential information being leaked to the outside is much higher, and corporate security officers cannot be free from concerns about data leaks.

In this post, we will examine the case of Company B, which actually introduced **mobile app security service LIAPP** to strengthen in-house security, and how it was able to prevent data leaks from business apps.

Are ‘business apps’ used by employees vulnerable to security? 

Company B, an IT service company with about 300 employees, developed and operated an in-house mobile app that could handle customer support, project management, internal reporting, etc.

Through this app, employees were performing the following tasks on a daily basis:

• Viewing and writing confidential business documents
• Registering project progress
• Viewing and entering customer information
• Proceeding with the approval process for managers

However, most employees using the app were installing and using the app on their personal smartphones, and the IT security team was concerned about the following security issues:

Key Security Threat Scenarios

1. If the device is rooted or a malicious app is installed
   → Risk of sensitive information being stolen or the app being manipulated

2. If employees decompile the source code and analyze the internal logic
   → Possible authentication bypass or exploitation of internal functions

3. If the app is modified to manipulate authorization rights or execute functions without authorization
   → Increased threat to internal business systems

4. If data stored in the app is extracted in an unencrypted state
   → Project or customer information is leaked as is

While the IT team was looking for a way to resolve all of these security threats, they reviewed a mobile app security service called **LIAPP**.

Introducing LIAPP – Applying ‘corporate-level security’ even to personal devices

LIAPP is a mobile app security service developed by Lockin Company, and is a solution adopted by various companies and public institutions to strengthen app security.
Company B needed the following security features for its in-house app, and LIAPP met all of them.

1. Verify whether the app has been tampered with, and block execution if any manipulation is detected
   → Anti-tampering

2. Protect the app’s internal source code from being leaked
   → Source code obfuscation and encryption

3. Prevent sensitive data from being exposed externally
   → Data encryption

4. Block rooted devices and hacking tool environments
   → Runtime threat detection

Business app security level changes

Company B compared and analyzed security tests and user logs before and after applying LIAPP.

Before application

• Part of the source code was exposed during the decompile test
• App can be run on rooted devices
• Sensitive data plaintext stored in JSON files within the app was found
• Developer successfully attempted to obtain administrator privileges by modifying APK files

After application (LIAPP security profile application completed)

• Structure cannot be identified due to source obfuscation and encryption during decompile
• App automatically terminates in rooted and debugging environments
• Data code encryption/obfuscation protects against theft of encryption logic
• App execution is blocked when tampering is detected, and administrator notification is provided through log server integration

As a result, all internal security tests passed with a ‘no abnormality’,
and the IT audit also evaluated that “the security level of business apps has significantly improved.”

In addition, Company B’s development team positively evaluated the introduction of LIAPP for the following reasons:
“LIAPP is immediately secured by simply going through a simple security application procedure after APK build,
so there was no need to change the app structure and there was no burden on the development schedule at all. In particular, since various security options can be selected through profiling, the flexibility to adjust them as needed was good.”

Why You Should Start Securing Your Business Apps Right Now

Today, many companies are adopting **BYOD (bring your own device)**, but app security is essential to operate it safely.
If any of the following applies to you, strengthening mobile app security is urgent:

• Employees are using in-house apps on their personal smartphones
• Apps contain customer information, contracts, and project documents
• Lack of security personnel makes it difficult to respond directly
• Recently, concerns have been raised about internal information leaks

Protecting in-house apps from external threats with LIAPP

Although in-house mobile apps are introduced for work convenience and efficiency, if they are not secured, they can become the most dangerous window for corporate confidential information to be leaked.
As in the case of Company B, we hope you can maintain corporate-level security on your personal devices and effectively block data leaks and internal threats through **a simple and quickly applicable mobile security solution called ‘LIAPP’**.

#In-house app security #BYOD security #Mobile app security #LIAPP #LIAPP #Data leak prevention #Confidential information protection #Forgery prevention #Rooting blocking #Obfuscation #Business app security #Mobile security solution #Corporate security case

Financial Security Institute, Mobile App Security Application Case for ISO Audit Passing

With the recent rapid growth of the fintech industry, the level of security requirements for financial apps is also increasing day by day.
In particular, in order to pass various domestic and international security certifications and audits such as ISO/IEC 27001, Financial Security Institute Security Review, and Electronic Financial Supervision Regulations, the security system of the app itself is very important.
To meet these security standards, many fintech companies are introducing mobile app security solutions, and LIAPP is a representative example that is attracting attention.

Successful Story of LIAPP Introduction by Fintech Company A

These days, if a company is preparing or operating a fintech service, the first wall they face is the security audit.
In particular, if they fail to pass the Financial Security Institute's prior security review, ISO 27001 certification, and Electronic Financial Supervision Regulations, it will be difficult to be authorized as an official financial service, and it may also hinder partnerships with partners or attracting investment.

In this post, we will introduce the necessity of mobile app security and the actual application effect in detail through the case of fintech company ‘A’ that actually introduced LIAPP and passed the security audit.

Fintech company A, the reality faced before the financial security audit

In the second half of 2024, fintech company A completed the development of a simple investment platform app and was preparing for the service.
In order to launch the service, it was essential to receive the Financial Security Institute’s security review and ISO 27001 certification, but after reviewing the audit items, there were many security requirements that were much more complicated and demanding than expected.

 • App forgery/alteration detection and response function
 • Blocking execution of rooted/jailbroken devices
 • Blocking malicious apps, debugging tools, and emulators
 • Encryption of important data (tokens, sessions, user information)
 • Source code protection and reverse engineering prevention

If there is a vulnerability in even one of these, it will be difficult to pass the certification audit, and there is a high risk of an actual security incident.
The problem was that there was a lack of internal security personnel and no ability to develop security functions directly.
At a time when concerns were growing within the team that “it might take months just to implement the security module,” the solution that Company A focused on was LIAPP.

Decision to introduce LIAPP – Strengthening security quickly and reliably

Company A considered the following criteria when reviewing the introduction of a security solution:

 • Must be able to meet security review items
 • Must be easy to introduce and not affect the development schedule
 • Must have proven cases in domestic financial/public institutions

The solution that met all three of these criteria was LIAPP.

LIAPP is a mobile app security service provided by Lockin Company that comprehensively strengthens app security through the following main functions:

Anti-counterfeiting and hacking detection
LIAPP detects forgery and tampering in real time while the app is running, and if a manipulated app or hacking tool is detected, the app is immediately terminated or user access is blocked.
This plays a key role in ensuring the integrity of the app.

Rooting/jailbreak detection
Running apps on rooted devices is extremely risky in terms of security.
LIAPP effectively blocks rooting, jailbreaking, and debugging tool detection functions, and satisfies the ‘execution environment protection’ standard, which is an important item in security audits.

Source code obfuscation and encryption
Hackers try to analyze the app’s logic through decompiling.
LIAPP obfuscates and encrypts the app source code itself, making reverse engineering attacks difficult, and is excellent in preventing app analysis.

Sensitive data encryption
LIAPP’s encryption logic safely protects user data, session information, and authentication tokens stored in the app, preventing leakage attempts.
This is an important standard that also complies with the ‘encryption control’ item of ISO 27001.

Actual application case – ‘Passed’ security audit in 3 weeks

Company A’s development team quickly decided to introduce LIAPP because it can load all the above functions with a simple task after building the app through the web-based security application platform provided by LIAPP.

Company A achieved the following results by introducing LIAPP: • Passed Financial Security Institute pre-screening

 • Satisfied with technical security items during ISO 27001 certification preparation
 • Determination of ‘No Risk’ in internal security diagnosis
 • Proven high resistance in external hacking simulation test

Actual review by developer of Company A

“We wanted to focus only on development, but we needed a service that didn’t require us to worry about security. LIAPP allowed us to pass the security screening without having to write our own security code, and we were very satisfied because we didn’t have to change the app structure or modify the build method to add security features.”

Security is no longer a ‘choice’ but a ‘strategy’

If you are preparing for financial and fintech services, security is not just a simple obligation, but a strategy for brand trust and service survival. In particular, if you are planning a certification screening or public institution partnership, establishing a thorough security system in advance is key, and introducing a verified security service such as LIAPP can be a very effective choice for this.

Preparing for a security screening quickly and solidly with LIAPP

The case of fintech company A shows that even a team lacking security resources can sufficiently pass the screening. With LIAPP, you can quickly meet security requirements while maintaining a high level of security without burdening the development schedule.

What if your app is in the following situation?

 • Preparing for Financial Security Institute security review
 • Ahead of ISO 27001 certification
 • Need security check before app store registration
 • Need external solution due to lack of security personnel

If you want to strengthen the security of your mobile app and be perfectly prepared from passing the review to responding to hacking, review LIAPP now.

#Fintech security #App security #LIAPP #ISO27001 #Financial Security Institute #Security review #Mobile app security #Forgery detection #Rooting blocking #Obfuscation #Data encryption #Fintech #App development security

'Factory-style hackers' who manipulate rankings with macros... Real-life security story blocked with LIAPP

Hello, if you are interested in mobile app security, I have something you must read.
Today, I will tell you about a mobile game that actually experienced factory-style hacking from China and how it was blocked and the game ecosystem was protected through LIAPP.

The ranking reliability suddenly collapsed one day

This case is the story of Company A's mobile game that had secured a global user base.
In particular, since the competition was strong and the user ranking structure affected the game content and rewards, maintaining the fairness of the ranking was the key to game operation.

However, at some point, a strange phenomenon began to occur.
 • Accounts that were not normally seen rose to the top of the rankings in one day,
 • Play patterns were consistent, and they repeated overly precise movements
 • Ranking points were accumulated at a speed that ordinary users could not keep up with.

The operations team, who detected something strange, immediately began analyzing it, and soon discovered that it was an organized manipulation using macros.

Hundreds of macro accounts automatically manipulated rankings overnight (the reality of factory hacking)
The biggest characteristics of this attack were its ‘scale’ and ‘sophistication.’

It was not simply a few users attempting to cheat, but an automated system that operated hundreds of accounts simultaneously, so-called ‘factory hacking.’

The main characteristics were as follows:
 • Most traffic is concentrated on IPs in specific regions of China
 • Repeat the same behavior patterns at the same time interval
 • Analyze ranking algorithms to implement the most efficient play in the shortest time

As the 'fake rankers' created in this way quickly took over the top ranks, the competitive spirit of normal players rapidly decreased,
and negative reactions such as "the management is neglecting hacking" began to spread in the game community.

The counterattack of 'intelligent security' started by LIAPP

As the situation became serious, developer A urgently introduced the LIAPP security service.
Although there were basic security devices in the past, this attack was much more sophisticated, and it was difficult to detect without behavior-based analysis.

LIAPP solved the problem through the following intelligent behavior-based detection functions:

Automated Tool Detection (Anti-Automation)

LIAPP basically provides the ability to identify macros or auto-click tools.
It can detect not only simple touch simulations or key input automation, but also whether the device is rooted, traces of debugging tools, and whether an emulator is running.
Thanks to this feature, we were able to selectively identify accounts based on automated tools used by attackers, and take measures to classify and block suspicious accounts or exclude them from reward payments.

Abnormal Behavior Analysis

Macro attacks are often designed to play 'plausibly' like a human, rather than simply repeating.
Based on the user's behavior log, LIAPP comprehensively analyzes the following factors:
 • Repetition speed: A constant interval that cannot be achieved by humans
 • Accuracy of touch location: Clicking on an overly mechanical location
 • Response time: Same response speed regardless of the network, etc.

Through this behavior-based detection, we were able to distinguish between human manipulation and machine automation, and the 'fake ranker' accounts created by attackers were filtered out in an instant.

Real-time response and account sanctions

Even during an attack, LIAPP monitored suspicious activities in real time and provided information to the operation team to help them respond quickly.
Thanks to this, more than 90% of the core attack accounts were blocked in just 3 days, the ranking was normalized, and the trust of existing users was restored.

Four lessons learned from this case

I have summarized the lessons that the developers and operations team directly experienced through this experience.

1. Security is not an option, but a necessity
 • To protect the fairness of the game and the trust of users, a preemptive defense system is needed, not a post-response one.

2. Macros no longer move like machines
 • Because many macros move like people these days, behavior-based security is essential.

3. Factory-type attacks are repeated
 • Once exposed, other hackers can attack in the same way, so continuous monitoring and response systems are important.

4. Game security is the user experience
 • This case clearly confirmed that creating a fair competitive environment leads to user satisfaction.

Fair games, protected by smart security

Hacking and macros are no longer problems limited to specific games.
Especially if it's a game with a competitive element, it can be a target at any time.
But don't worry.
LIAPP goes beyond protecting the inside of the app, and is a service that can actually respond to intelligent attacks by analyzing the behavior of actual users.
Rather than rebuilding the game from scratch, it is a faster and more valuable choice to properly establish security now.

Are you worried about macro or ranking manipulation issues while operating the game?
If you want to introduce LIAPP, you can also request a demo on the official website!
I definitely recommend trying it out 😊

#AppSecurity #GameAppSecurity #MobileAppSecurity #MobileGameSecurity #AppDevelopmentSecurity #MobileSecuritySolution #SecurityThreatBlocking #ForgeryDetection #RootingBlocking #Obfuscation #DataEncryption #MacroBlocking #AutomatedAttackDefense #RealTimeDetection #LIAPP #FactoryHacker #MacroSecurity

How Secure Are Flutter Apps?

What is Flutter?

Flutter is an open source framework for mobile application development developed by Google, and is based on the Dart language. It can be run on various platforms such as Android and iOS, as well as the web, desktop, and IoT devices, and is optimized for cross-platform development that supports multiple environments with a single code. Due to its fast development speed, high scalability, rich UI components, and animation support, it has recently established itself as a leader in mobile app development, and is being chosen by many developers and companies.

Flutter App Security: Is It Really Worse Than Native Apps?

However, Flutter has some areas where security is lacking with only the basic settings, and these are often overlooked. In particular, security in the mobile environment is not an option but a necessity, but security considerations are often neglected due to the focus on convenience and speed of development.
Many developers may have the prejudice that "Flutter is cross-platform, so security is weak," but in reality, depending on the method and attitude of security implementation, a level of security comparable to that of native apps can be implemented. What is important is not the framework itself, but how security is applied.

Flutter apps can basically provide a similar level of security to native (Android/iOS) apps, but additional measures are required for code protection, data storage, and network security. In particular, they can be vulnerable to security threats such as code leakage through decompilation, unencrypted data storage, and man-in-the-middle attacks (MITM). In addition, recent mobile app hacking techniques are becoming increasingly sophisticated, going beyond simple code analysis to memory manipulation, network sniffing, and the use of automated tools. In particular, Flutter apps have AOT compilation and structural simplicity, so attackers can quickly figure out the code structure when reverse engineering, and traditional security methods alone have limitations in responding.

In this blog, we will analyze what vulnerabilities Flutter apps have in terms of security and take a closer look at the security enhancement methods that must be applied to develop a secure app.

1. Security Vulnerabilities in Flutter Apps: Comparative Analysis with Native Apps

1) Code protection issues: Risk of decompiling Dart code
Dart, the base language of Flutter, has the advantage and disadvantage of being simple. It is intuitively easy to use, but for experienced developers, it is not as complicated as languages ​​like Kotlin or Swift. Dart is converted to native code through AOT (Ahead-of-Time) compilation during the build process. However, during this process, there is a risk that some metadata and code structures may be exposed through reverse engineering. In particular, if sensitive information such as authentication logic or API keys are included in the client code, there is a risk that they can be easily exposed through decompilation. Therefore, it is recommended to apply code obfuscation (--obfuscate, --split-debug-info) and protect the core security logic by separating it into native code on the Android or iOS side.

2) Data storage vulnerability: Data storage is basically unencrypted.
In order to store information in Flutter, the SharedPreferences package is commonly used. However, this method does not support encryption by default, so there is a risk that sensitive information such as tokens, login information, and personal information of users may be easily exposed. Therefore, when storing sensitive data such as login information or user identification values ​​(ID), it is recommended to store them using SecureStorage, and it is recommended to consider a structure in which sensitive information is managed on a server rather than locally if possible.

3) Network security issues: MITM attacks are possible if SSL Pinning is not applied.
Flutter apps usually use libraries like http or dio to process network requests when exchanging data with servers. Basic SSL authentication is applied during this process, but since the server certificate is not thoroughly checked for forgery, there is a risk of a man-in-the-middle attack (MITM) in which an attacker intercepts communication with a fake server. Especially when handling sensitive data such as login, payment, and user information, a secure connection between the app and the server is very important. To this end, by applying SSL Pinning, you can strengthen security by restricting the app to communicate only with normal servers with trusted certificates. It can be easily implemented in Flutter with dio settings or a dedicated plugin.

4) Lack of security validation for packages (plugins)
When developing Flutter apps, using various packages (plugins) can make development much easier, but using unverified packages can be dangerous. Some packages may require excessive permissions or may transmit sensitive data to the outside. Therefore, even for packages registered on pub.dev, you must check the rating, whether they have been recently updated, and whether they are open source code. If possible, it is safer to preferentially use packages provided by trusted developers or officially provided.

2. How to strengthen Flutter app security with LIAPP

Flutter is convenient because it focuses on rapid development and UI-centric convenience, but in terms of security, it requires more careful management than native apps. As we have seen above, there is a risk of code exposure due to the characteristics of Dart code, and the high dependency on external packages can lead to unintended information leaks or security vulnerabilities. In addition, due to the cross-platform nature, there is a structure that makes it difficult to respond in detail to all security situations. To supplement these security vulnerabilities, you can apply powerful security functions to your app without additional development by utilizing the professional mobile app security service LIAPP.

1) Critical code obfuscation & encryption
Apps made with Flutter are based on Dart code and are compiled and distributed as native library files such as libapp.so. These native files may contain actual business logic or sensitive processing, so there is a risk that the internal implementation can be stolen through reverse engineering.

Usually, data encryption is applied through the encrypt package in Flutter, but if the encryption logic and key exist inside the client, there is still a security vulnerability. Therefore, simple logic-level encryption is not enough, and measures to protect the native library itself are needed.

LIAPP can further strengthen security by providing integrity verification and anti-forgery prevention for the .so file containing the core logic of the Flutter app through the Native Library Protection function in addition to Java source obfuscation. If the existing Java code obfuscation function is also applied in parallel, a security environment that can respond to both native and hybrid structures is built.

2) Data protection through various security features
Flutter's flutter_secure_storage and sqflite_sqlcipher packages are effective in encrypting and storing sensitive data within the app, but the encryption logic or key itself can still be exposed, making complete protection difficult.

However, using a security solution such as LIAPP can enhance the overall security of the app by providing security features such as memory protection, debugging detection and blocking, rooting detection, virtual machine detection, and hacking tool detection.

LIAPP goes beyond simple data encryption to protect the entire app execution environment, helping to respond to advanced hacking techniques such as reverse engineering and memory tampering. In particular, it can prevent the leakage of logic or encryption keys containing sensitive information, which is a major advantage in that it can enhance the security of the execution unit that is difficult for developers to implement directly.

3) Supplementing SSL Pinning from a network security perspective
Applying SSL Pinning to network requests in Flutter can prevent basic MITM attacks, but open source code-based SSL Pinning is difficult to consider as a complete security measure because various bypass methods are already known.
Therefore, to strengthen Flutter network security, it is more effective to utilize LIAPP's SSL Pinning function to dynamically verify certificates during app execution and detect and block malicious proxies or abnormal network environments.

External packages used in Flutter are useful for accelerating development, but they can be vulnerable to security vulnerabilities, so caution is required. When selecting a package, it is recommended to check the GitHub star rating, recent commits, maintenance status, etc., and review suspicious permission requests or internal logic. It is also important to regularly check for package updates and use the latest version with security patches. Introducing a vulnerability scanner to the CI/CD pipeline will help detect security risks in advance. And most importantly, it is important not to rely solely on security-related packages, but to introduce a specialized security solution such as LIAPP to protect the integrity of the entire app and its execution environment. This will also prevent security incidents caused by package vulnerabilities in advance.

If you consistently manage these practices, your Flutter app can also build a strong security environment that is superior to that of native apps.

LIAPP, Provides Only the Best Services

How to Secure Hybrid Apps

Why is hybrid app security important?

A hybrid app is a development method that uses web technologies (HTML, CSS, JavaScript) to create content areas such as screens and functions of an app, and packages them in a native container for app market registration and installation.By using both development approaches, you can use both web and app APIs, and access device-specific features that are not possible in web apps. While hybrid apps are a great way to take advantage of the power of web technology while maintaining the performance and user experience of native apps, they can reduce development time and costs, but there are many security vulnerabilities. Hybrid apps include web-based elements, so they inject malicious code, Because you may be exposed to risks such as data leakage and repackaging, you need strong security measures to protect your users' data and maintain the integrity of your app. 

Key differences between hybrid and native app security

Native app security is optimized for a specific platform so that you can directly leverage the security features of the operating system, but you need to consider the security measures specific to each platform separately. On the other hand, hybrid app security is based on web technologies and runs on a variety of platforms, so the potential for exposure to web vulnerabilities is relatively high. These two development approaches have distinct security differences in terms of structure, data storage, security updates, and reverse engineering.

1. Structure and technology stack
- Native apps: Developed for a specific platform (iOS, Android, etc.), you can use the platform's APIs and features directly to take advantage of the platform's unique security features.
- Hybrid apps: Developed using web technologies such as HTML, CSS, and JavaScript, and run on native platforms via web views, which can make them vulnerable to web-based attacks (e.g., XSS, CSRF).

2. How we store your data:
- Native apps: Data is typically stored in the platform's secure vaults (e.g., Keychain on iOS, SharedPreferences on Android), which are highly secure.
- Hybrid apps: Data can be stored within a web view or stored in local storage, making it easy for attackers to gain access to the data.

3. Security Updates:
- Native apps: They must be deployed to users when they are updated, and they must be re-registered and approved. Even if the modified app is well registered, existing installers will need to update before the modified version can be used.
- Hybrid apps: They use web technologies, so any code updates on the server side can be immediately reflected in the client app. However, this is a risk if the security of the server is weak.

4. Reverse Engineering:
- Native apps: Native code is included, which can make reverse engineering more complex, but there are still security risks.
- Hybrid apps: Contains code written on web technologies, making it relatively easy to reverse engineer.

These differences affect the security approach of hybrid and native apps, and it's important to have a security strategy tailored to each type of app.

How to Secure Hybrid Apps?

1. Source code protection

Hybrid apps use web technologies such as HTML, CSS, and JavaScript, so the source code can be decompiled and analyzed relatively easily. This can be exploited by attackers to gain insight into your app's logic, structure, API keys, and more. In addition, if sensitive information such as API keys, encryption keys, and server URLs contained in the source code is not protected, it can be exploited to cause unauthorized access or data leakage. In addition, if the source code is exposed, attackers can tamper with the app or inject malicious code to harm users, and competitors can copy or use it without permission. Therefore, source code obfuscation and encryption should be used to prevent analysis of source code and core logic.

LIAPP obfuscates the source code, making it difficult for hackers to understand the internal structure of the app. This prevents attacks through code analysis. You can also protect native code libraries to protect sensitive algorithms, keys, sensitive data, and more.

2.    Use strong encryption algorithms

Hybrid app source information includes information for web access, as well as information for services that need to be kept confidential, such as finance or payments. Hybrid apps are particularly vulnerable to attacks due to the exchange of data between native code and web views, API calls, and so on, so it's imperative to encrypt sensitive user data before storing or transmitting it. It securely stores sensitive data on your device, does not store sensitive information in plain text, and uses encryption technology to protect data at rest. 

Mobile App Security Keypad LIKEY is a security keypad service designed to keep users' personal information safe. LIKEY uses encryption algorithms to protect the information you enter, encrypting all information you enter as well as encrypting and storing the data you enter.  In doing so, it uses a unique encryption algorithm to protect the user's input from being exposed to the outside world. All information you enter is stored encrypted, making it difficult for hackers to intercept and decrypt it. This greatly improves the security of the app on mobile.

3. Web View Security

In hybrid apps, the web view acts as a link between native and web content and is prone to security vulnerabilities. To avoid this, if you access native code via JavaScript, you should validate the input data and expose the interface to a limited extent. You should also set to allow only trusted domains when loading external URLs and prevent web views from accessing local files to prevent file-based attacks.

LIAPP protects the JavaScript interface in the web view, preventing external attackers from exploiting the app's functionality. This makes your app more secure.

4. App integrity verificationIn 

hybrid apps, verifying the integrity of an app is an important security measure to prevent the app from being tampered with or malware injected. If an app is tampered with after it is deployed, it can cause damage to users, such as injecting malicious code and stealing data, so integrity verification is necessary to prevent this. To do this, the app must be deployed signed, and the signature must be validated at runtime. However, the logic to verify integrity is also contained inside the app, so even this logic above there is a risk of tampering. 

For this reason, the app integrity verification logic must also be protected through LIAPP's source code obfuscation and source code encryption technology.

5. Deployment and Update Security

Hybrid apps are vulnerable to security threats when deployed or updated. If you deploy and update insecurely, there is a high chance that a malicious attacker will tamper with the app's installation files (APK, IPA, etc.) or distribute malware through fake updates. To increase security during the deployment and update of hybrid apps, you should distribute them through official app stores and apply digital signatures to prevent app tampering. In addition, it is important to control access to the backend server where the update files are stored and manage the security. You should keep your apps and dependencies up to date with security patches and software updates, while frequently updating libraries, frameworks, and SDKs to the latest versions to minimize security risks.

LIAPP finds vulnerabilities and strengthens security through pre-deployment app analysis of hybrid apps. It also uses anti-repackaging to prevent unauthorized changes to the app and ensure secure file distribution. In addition, security settings can be adjusted on/off on the fly without redeploying apps, allowing you to quickly change security policies.

Hybrid app security is essential to maintaining user data protection and trust. It's important to check your source code and update your library to minimize risks, and you should proactively identify vulnerabilities in your app through regular security audits. In addition, sensitive information can be kept safe through thorough user authentication and data encryption. It's also important to educate and raise awareness of users to create a culture of safe app use. After all, with thorough security management, hybrid apps will be able to establish themselves as a trusted platform that users can use with confidence.

LIAPP, we provide the best service possible. 

Imagine a digital landscape where every transaction is a potential target for cyber threats. In the fintech world, this is the reality—a high-stakes environment demanding innovative security solutions that protect without slowing down business operations. 

Welcome to the ultimate security playbook for fintech leaders, where real-time threat detection meets zero-trust principles, ensuring your digital assets are safeguarded while delivering a seamless user experience.

The Balancing Act: Robust Security Meets Seamless User Experience

In fintech, security is non-negotiable. However, implementing robust measures shouldn't come at the expense of user experience. A seamless experience is crucial for customer retention and trust. The key is to strike a balance—implementing advanced security that operates in the background, providing a secure yet user-friendly experience.

Real-Time Threat Detection: The Heart of Fintech Security

Real-time threat detection is essential for identifying and neutralizing threats as they occur. Key components include behavioral analytics, continuous monitoring, and AI-driven predictive detection.

Zero-Trust Security: A Non-Negotiable in Fintech

Zero-Trust Security assumes no user or system is trustworthy by default. It requires verification for every access attempt, making it essential for protecting sensitive financial data.

Compliance: Navigating the Regulatory Maze

Fintech companies must adhere to regulations like GDPR, PSD2, and CCPA to ensure data privacy and security. Understanding these obligations builds a secure and trustworthy platform.

Phishing Protection: Your First Line of Defense

Phishing attacks pose significant threats. Implementing robust phishing protection measures is crucial to safeguard users and maintain platform integrity.

Encryption and Tokenization: Safeguarding Financial Transactions

Encryption ensures data remains unreadable to unauthorized parties, while tokenization replaces sensitive data with non-sensitive equivalents, protecting transactions even if a breach occurs.

Building a Culture of Security: Training, Awareness, and Customer Trust

Security is not just technical; it's cultural. Fostering an environment where every team member understands its importance enhances customer trust.

Communicating Complex Security Measures Effectively

Clear communication of security protocols is crucial. Use analogies and simple language to explain complex concepts to non-technical team members.

How Lockin's LIAPP Can Help

Lockin's LIAPP offers comprehensive solutions tailored for fintech security:
• Zero-Trust Implementation: Enforces two-factor authentication and real-time monitoring to ensure only authorized access.
• Real-Time Threat Detection: Utilizes AI-driven analytics to identify threats instantly without disrupting service.
• Phishing Protection: Detects and blocks remote-control apps used in phishing attacks.
• Encryption and Obfuscation: Protects sensitive data through robust encryption techniques.
• User-Friendly Integration: Seamlessly integrates with existing systems, offering powerful protection with minimal disruption.

By employing LIAPP's advanced features, fintech companies can enhance their security posture while maintaining an excellent user experience.

Conclusion: The Future of Fintech Security

The future of fintech security is dynamic. With proactive strategies like real-time threat detection and zero-trust models, fintech firms can stay ahead of threats while ensuring secure transactions without compromising user experience. By leveraging solutions like LIAPP, companies can build trust and ensure long-term success in an increasingly digital world.

Want to see LIAPP’s real-time detection in action? Request a demo today and learn how Lockin can secure your mobile app against emerging threats.

LIAPP, we provide the best service possible. 

Mobile apps are now integral to industries like fintech, healthcare, and gaming, but with this growth comes increased cyber threats. In this landscape, real-time threat detection is no longer optional—it’s essential. Monitoring, detecting, and responding to threats in real-time is vital to ensuring app security and user trust.

LIAPP, a leading mobile app security solution, offers cutting-edge real-time detection and instant response capabilities, providing a robust defence for mobile apps across industries. This blog will explore how LIAPP sets a new standard in real-time threat detection and why it’s the preferred solution for businesses prioritising app security.

The Growing Need for Real-Time Threat Detection in Mobile Apps

The rapid digital transformation has spurred the growth of mobile apps, but it has also introduced new vulnerabilities. Data breaches and hacking attempts can occur within moments in sectors like fintech and gaming.

Based on IBM's Cost of a Data Breach Report 2024, here are two key facts about cyber threats:

1. The global average data breach cost reached $4.88 million in 2024, a 10% increase from the previous year. As cyber threats evolve, the need for proactive measures becomes increasingly critical. Organizations must not only implement robust security protocols but also foster a culture of security awareness among their teams. Training employees to recognize potential threats, such as phishing attempts or suspicious app behavior, can significantly reduce the risk of breaches. 
2. Compromised credentials were the most common initial attack vector, accounting for 16% of all breaches and taking an average of 292 days to identify and contain. With the raising of hacking tools, waiting to patch vulnerabilities is no longer viable. Businesses need solutions that can monitor app security in real-time, identifying threats as they happen and responding immediately.

How LIAPP Powers Real-Time Threat Detection

LIAPP is designed to provide real-time security monitoring, ensuring that any suspicious activity is detected and blocked instantly.

Key Features:
Real-Time Detection Statistics: LIAPP offers users detailed real-time threat statistics, giving insights into emerging attacks and vulnerabilities.

Flexible Security Adjustments: One of LIAPP’s standout features is its ability to change security settings in real-time—without the need for re-distribution through app stores like Google Play or the App Store. This unique capability allows businesses to adapt to threats immediately, providing flexibility not seen in other mobile app security tools.
By tracking security threats as they occur, LIAPP empowers developers and security teams to take preventative action before a breach can happen, minimizing risk and protecting user data.

Applications of Real-Time Detection in Key Industries

Fintech: Securing Financial Transactions
In fintech, real-time threat detection is crucial. Financial apps handle sensitive user data, and a security breach can result in massive economic losses and regulatory penalties. LIAPP’s real-time detection ensures instant monitoring of suspicious activities, protecting against phishing, fraud, and data tampering.

Healthcare: Protecting Patient Data
Patient data security is paramount for telemedicine platforms and healthcare apps. LIAPP ensures compliance with regulations by providing real-time detection of unauthorised access or data manipulation, ensuring that personal health information remains secure.

Gaming: Preventing Cheats and Fair Play
The gaming industry is especially vulnerable to cheat tools and memory tampering. LIAPP’s ability to detect and block these activities in real-time protects game integrity and ensures fair play, offering anti-cheat solutions that secure in-app purchases and player engagement.

The Flexibility of Real-Time Security Adjustments with LIAPP
One of the biggest challenges in mobile security is the time it takes to redistribute apps when security settings need to be updated. For many businesses, this delay creates a window of vulnerability where hackers can exploit weaknesses.

LIAPP’s Solution:
LIAPP allows users to adjust security settings on the fly without redistributing the app. This saves both time and resources while ensuring the app stays secure without interruption.
Security settings can be adjusted based on real-time threat data, ensuring businesses can stay one step ahead of potential attackers.

LIAPP’s Action-Based Detection: Beyond Static Defense

While most security tools rely on lists of known threats, LIAPP takes a more dynamic approach by offering action-based detection. This means LIAPP monitors apps’ behavior in real time, identifying suspicious activity based on actions rather than simply scanning for known malware or tools.
This approach is critical for cheat detection in gaming and data security in fintech and healthcare.
LIAPP’s action-based detection can identify suspicious behavior like a cheat tool modifying game data or unauthorized access to financial records, stopping the attack before it can cause damage.

Why LIAPP is Leading the Future of Mobile Security

With mobile apps constantly under threat from hackers and cybercriminals, businesses need a solution that can adapt in real time to protect their apps and data. LIAPP provides this flexibility through real-time threat detection, instant security adjustments, and action-based detection, making it the go-to solution for mobile app security in industries like fintech, gaming, and healthcare.

For businesses looking to strengthen their app security, LIAPP offers an unparalleled combination of advanced technology and ease of use. Don’t hesitate to contact the LIAPP team to learn more about how real-time threat detection can protect your business.

Want to see LIAPP’s real-time detection in action? Request a demo today and learn how Lockin can secure your mobile app against emerging threats.

LIAPP, we provide the best service possible. 

What is DevSecOps? 

DevSecOps stands for Development, Security, and Operation which refers to a development culture that emphasizes security at every stage of the software development process. In traditional IT organizations, development, operations, and security were typically separated, with clear responsibilities respectively. However, in today’s fast-paced business and ICT environment, IT operations need to be more efficient, with shorter development cycles that allow for quick feedback and iterative improvements. This approach helps organizations adapt to rapidly changing market conditions. As a result, the concept of DevSecOps emerged, integrating security throughout the entire IT lifecycle from development and deployment to operations and management. 

Prevent Mobile Phishing with Remote Control App Detection  

What is Phishing? 

Phishing is a combination of the words “private data” and “fishing,” referring to a hacking technique used to steal sensitive personal information such as passwords, credit card numbers, social security numbers, and other important data. Typically, phishing disguises itself as a message from a trusted person or well-known company, luring the victim to a fake website to enter personal information or prompting them to download malicious malware. 

Like many common threats, phishing began in the 1990s with the rise of the internet. Back then, hackers impersonated AOL (a company in US) employees to steal accounts and in the 2000s, phishing emails tricked users into revealing bank account information, or hackers would steal eBay and Google accounts to commit fraud, steal money, or send spam to other users. 

The Rise of Mobile Phishing: From Email to Social Media - The Evolution of Phishing Attacks and New Threats 

Why Phishing Attacks are Effective on Mobile Devices 

1. Mobile Interface 

Unlike PCs, the mobile interface can hide many warning signs. On a desktop, users can hover over a link to verify whether the web address is legitimate or not. But on mobile, device this option is not available, thus making it harder to detect if a link is malicious. Additionally, traditional protection measures such as firewalls, secure email gateways, and endpoint protection are not as widely available on mobile devices, making it easier for hackers to launch attacks. 

2. SMS, Messaging App and Social Media 

Hackers don’t limit their activities to email on mobile devices. The most active platforms for mobile phishing are social media and messaging apps such as Facebook, LinkedIn, and Instagram. Users are generally less suspicious of links on social media, and hackers exploit this security gap. 

3. Using Phones for Both Personal and Work 

As more people use mobile devices for work, they become highly attractive targets for cybercriminals. If a hacker tricks someone into clicking a malicious link, they can easily gain access to sensitive work-related information stored on the phone, as well as take control of the device. 

The Risk of Phishing Attacks via Remote Control Apps 

In a phishing attack, if a malicious URL is clicked, a remote-control app can be installed, leading to the theft of personal information. While remote-control apps are useful, they can become very dangerous tools when exploited in phishing attacks. Hackers can leverage the nature of these apps to take full control of the victim's device and steal sensitive information. The following are the main reasons why remote support apps are used in mobile phishing attacks: 

1. Extensive Device Access Permission 

Remote-control apps request access to various functions within the device. They can control the screen in real time, access files, or run applications. These permissions allow hackers to fully control the victim’s smartphone and use it to steal sensitive information. 

2. User Trust  

Remote-control apps are primarily used for technical support, customer service, and IT troubleshooting. Because of this intended purpose, users tend to trust the app and install it without suspicion, granting permissions without hesitation.  

3. Real-Time Control and Deception  

Since remote-control apps can directly control the mobile device’s screen in real-time, an attack can occur without the victim knowing what’s happening. Hackers can monitor the victim's actions in real-time and capture sensitive information, such as logging into banking apps or entering confidential data.  

4. Evasion of Legal Regulations 

Since remote-control apps are typically designed for legitimate and useful purposes, they are less likely to be automatically blocked or detected by security software or the operating system.  

5. Easy User Deception 

A hacker can easily induce the installation of a remote-control app under the guise of customer service or technical support.  

How to Prevent Phishing Attacks 

To prevent phishing, it is essential for mobile device users to be cautious about their actions. Users should avoid clicking on suspicious URLs and be wary of installing remote-control apps disguised as customer support. However, phishing crimes have recently become more sophisticated, making it difficult for users to always stay alert. In this context, merely detecting remote-control apps can significantly reduce the risk of phishing. Additionally, apps that handle sensitive information, such as banking or financial data, can incorporate remote control app detection features to block app execution or notify users if a remote-control app is installed. 

How to Use the LISS against Remote-Control Apps 

LISS (LIAPP Secure Screen) is a solution designed to enhance mobile security by providing functions such as remote-control app detection, screen capture prevention, and screen recording blocking in a mobile environment, safeguarding users from various threats that aim to collect personal information.

When an app with LISS protected is running, it immediately detects if a remote-control app is running or has been installed. If the detected remote-control app is suspicious, LISS can block it or send a warning message to the user, allowing them to take appropriate action. Additionally, LISS thoroughly prevents illegal screen captures or sharing and recording, protecting users from the threat of data exposure. 

Are you developing a fintech app or an app for financial transactions? If so, it is highly recommended to use LISS, which can detect remote-control apps and protect app users' sensitive data. Financial services handle sensitive user data, and if exposed to security threats, this can lead to financial losses such as customer data breaches, illegal fund transfers, and account takeovers. It can also damage the company’s reputation, result in customer loss, attract regulatory sanctions, lawsuits, and in severe cases, cause service disruptions. Phishing attacks that exploit remote- control apps are especially dangerous because they can occur without the user's awareness.  

Apps with LISS protected not only detect remote-control apps and notify users, but also block screen captures and recordings in advance, preventing sensitive data from leaking outside. As a result, users can protect their data securely, while companies can maintain trust and minimize financial losses and legal risks associated with security breaches. Additionally, LISS is provided as a library-style SDK, allowing it to be embedded within the app without requiring significant resource investment from the app development team. It can also be applied as a standalone module without needing any additional app installations. 

Strengthen your app's security with LISS and provide a service that reassures your customers. In an era where security is crucial, LISS is now an essential choice. 

LIAPP, we provide the best service possible. 

- Everything I type, they will be delivered to hackers through keylogging

The Reasons Why Hackers Collect Information Through Mobile Devices 

Information is the most valuable asset in modern society. Some people make money by sharing the information they know, and companies often use it strategically. Depending on how information is managed and protected, a large economic gap can occur. Information is valuable not only to individuals and companies, but also to hackers, as hackers can collect various information from mobile devices and abuse or sell it. Mobile devices are particularly susceptible to attacks because they contain a lot of sensitive data, including financial data, personal information, and corporate information. There are many reasons why hackers steal information from mobile devices, but the main ones include financial reasons, requests from government agencies, cyber warfare, industrial espionage, and resource theft. 

The Reasons Why Hackers Collect Information Through Mobile Devices

LIAPP, we provicde the best service possible.

OWASP Mobile Top 10 2024 – Guide to Addressing the Most Critical Vulnerabilities for Mobile App Security

New Android banking trojan called "Sharkbot", its way of attack and how to defend

Malware? not the antivirus?

Protect cheat engine – How to protect the game app from cheat engine

Mobile games have emerged as 'leisure at home' for many people as they went through prolonged COVID-19. However, in proportion to the growth of the global mobile game market, the most problematic is the‘game hack'.

These kinds of game hacks use various techniques to attack games, and among them, memory tampering attacks are traditionally the most common hacking cases. In mobile, it is possible to play the game relatively quickly by tampering with in-game data (goods, strength, power, etc.) through memory tampering using well-known hacking tools or code fabrication in memory. Many hacking tools help with hacking. There are a lot of hacker attacks on mobile games occurring every day. To protect game services from hacker attacks, mobile game providers detect and block hacking tools in various ways.

Example of a memory tampering attack using a cheat engine 

However, recently, there have been memory tampering attacks that are difficult to detect by conventional methods. An example is a memory attack using a cheat engine in an emulator environment. If an app is run in an emulator (NOX, BlueStacks, ...) and fabricates the emulator's memory through a cheat engine running on a PC, hacking memory tampering can occur in a space where the security module cannot detect. That is why the cheat engine is becoming a significant problem in the game service industry.

Dangers of the cheat engine

Well-known mobile game hacking tools (GameGurdian,...)try to bypass various techniques to avoid security module detection. Still, the security module is installed in the mobile device within the range that can be detected, which means detection is possible.

Detect common hacking tools in a security module 

However, in the case of cheat engines, they run games on emulators such as NOX, BlueStacks, and LD players in a PC environment. The cheat engine on the same PC modulates the memory of the game on the emulator. In that case, the security module cannot detect attacks unless it is within scope. In other words, the Cheat Engine is a process that runs on the PC. It can fabricate the memory area of the app running in the emulator in the PC environment. This makes it easy to bypass anti-debugging or process, file detection, and memory manipulation, making it impossible for basic mobile security modules to detect. 

Data and memory tampering of cheat engine in an external emulator environment

Memory tampering is a type of hacking that has continued from the past till nowadays on the platforms such as PC or mobile. However, hackers will focus their attacks on areas where the protection function cannot be reached. Hacking cases that tamper the memory with cheat engines targeting specific games are constantly being reported, and related data are being shared on video platforms. This type of attack is expected to spread more rapidly upcoming days. 

Sharing hacking methods through cheat engines in online video platform 

A cheat engine itself is dangerous. But the biggest risk is that hacking techniques using cheat engines are actively shared through many social media or internet communities, which has a ripple effect.

The reality of game companies dealing with cheat engines

Then… is there no way to prevent these cheat engines? In the case of game data, it is challenging to detect tampering because it is a value that constantly fluctuates according to the play. In addition, “process monitoring,” one of the representative hacking tool detection techniques, and the method of detecting an external process accessing a specific hack or memory are meaningless for the cheat engine’s attempts for the reasons described above, so no developers are trying to stop them. That is why focusing on encryption of sensitive data or detection of fabrication.

Game developers sometimes use memory defense toolkits sold in-game engine assets (unity asset,…) for these functions. Still, these modules provide simple encryption and easy-to-know encryption patterns. This can result in hacking by easily bypassing it. 

Defense Strategy of Cheat Engine with LIAPP

Therefore, to defend from hacking through the cheat engine, variables must be classified according to importance, and use encrypted variables with high priority. Variable encryption is the most effective way to counter memory tampering and is also a proven method. However, in the case of such encryption logic, the effect may vary greatly depending on the developer’s capabilities. For game performance, encryption and decryption processes are reduced and optimized by decreasing as much as possible. Still, in this case, simple encryption, such as regular or bit operation, may be applied, preventing data from being effective.

LIAPP, a mobile app security service, is excellent for game memory security because rather than encrypting variables based on patterns, we create new variables each time it is run. So, it is impossible to infer the encryption. LIAPP also be readily applied because it is easy to insert variable encryption into the game logic. It can be applied only by changing the variable name; it is easy to use but boast strong security that no one can easily break through.

There is no one-size-fits-all defense technique. Therefore, bear in mind that it can be bypassed and apply various defense techniques to make hacking as difficult as possible. Don't hesitate to contact the LIAPP team if you want to protect your mobile game. We provide the most effective security service and customized consulting for each customer. 

LIAPP, we provide the best service possible. 

#Anti tampering_Block #Anti tampering_protection #fintech_security #Fintech_security #Source code_protection #source_code_protection #Mobile_app_security #Mobile_game_security_solution #App_anti tampering_detection #Unity_security #Unreal_engine_security #cocos_security #Repackaging_protection #Memory_security #Memory_tampering_detection

Four security checklists for Android app development

Android is an open-source-based operating system that allows developers to develop apps quickly. However, the fact that easy access and few constraints in development are acting as a security vulnerability. There are plenty of mobile apps produced on Android, but only a few apps with a level of security that users can use with trust. Significantly, the Android operating system is exposed to the risk of hacking through decompiling of the app or reverse engineering.

If a pirated app created by copying the source code of an app through decompilation or reverse engineering is distributed, severe financial loss to the original developer as well as serious adverse effects on the reputation.

In addition, if malware/malicious code is injected into the app for purposes and distributed, it may expose a leakage of personal information or device malfunctions.

Despite such cases, it is not easy for developers to come up with all security systems in developing mobile apps due to technical or time constraints. However, if only the necessary security is applied, issues related to time and money can be easily solved. To solve these realistic challenges, LIAPP TEAM would like to introduce four essential features for Android app security that must be checked before launching the app. 

1. Detect and block Rooting

Google Play Policy Update -Regarding Sensitive Information

 

 

Location Permissions

 

Smartphones are always checking their location with GPS. Many apps already require this location information, but if you blindly consent to provide location information, there is a risk that it will be used by malicious apps that perform stalking activities. The following requirements apply to location information access.

• If you no longer need the app's current functions or services, the app should not access data(example: ACCESS_FINE_LOCATION, ACCESS_COARSE_LOCATION, ACCESS_BACKGROUND_LOCATION) protected by location information access to information access.
• Do not ask users to access location information only for advertising or analysis purposes. If your app extends the acceptable use of location data for advertising, you must comply with Google's advertising policy.
• The app should request the minimum range (i.e., the foreground instead of the background, etc.) required to provide the current function or service that requires a location. The user should reasonably expect the location level requested for the function or service. For example, Google can request a background location without solid evidence or reject an app that accesses it.
• Background location access is helpful to users and can only be used to provide functions relevant to the app's core functionality.

An app can access a location using a foreground service (If the app has only foreground access, ex: 'Only during use') permission to access the location.

A Response Measure to the Security Threat of Virtual Space App

Fintech App Service Vulnerability Inspection Guide from Financial Security Agency

The application execution code, user accounts, and valuable functions are decrypted and stored in plain text in memory, which can expose sensitive information inside the application. A memory exposure vulnerability occurs when sensitive information is stored on the source code and is exposed to memory in plaintext without encryption. All variables that store important information must be encrypted to solve this problem. LIAPP blocks the exposure of sensitive data in memory through a separate encryption module that can encrypt memory values.

[TECH]PCI SSC Security Requirements for Fintech Apps

[Interview] Prevention of app tampering, I solved with LIAPP!

Introduction to the company that introduce this LIAPP

LIAPP, that I met after the app tampering incident

After the introduction of LIAPP, there was no hacking and tampering of the app in Pintown

Simplified customer verification process with enhanced security after the introduction of LIAPP

If you love running app services, we strongly recommend introducing LIAPP.

Why Do Hackers Attack Mobile Apps?