The Core Challenge: One Mobile Banking App. Every User. Zero Friction.

Building a modern mobile banking app means solving three problems at once: making it intuitive enough for daily use, fast enough to feel instant, and secure enough to earn long-term trust. For one financial institution ready to raise the bar, the answer was a complete transformation of its mobile channel  in partnership with us.

The result is a native mobile banking app built on Digital Edge, ASEE's digital banking platform, designed as a unified 2-in-1 solution for both retail and business users. A single interface. A full range of capabilities. No separate apps, no fragmented experience.

What a Modern Mobile Banking App Actually Requires

A competitive mobile banking app must deliver three things simultaneously:

• intuitive UX
• real-time performance
• embedded security.

Here's how this transformation addressed each:

Performance that users notice immediately.

Faster login, optimized app performance, and instant payments available 24/7 (completed in seconds) mean users spend less time waiting and more time banking. The refreshed interface removes visual clutter and surfaces the most-used features without requiring navigation depth.

Security that works without slowing users down.

Biometric authentication replaces PIN-only login, reducing friction while strengthening access control. Payment recipient verification adds a layer of transaction security before funds move. Users can also choose to hide or display their account balance on the home screen, putting privacy control directly in their hands.

Notifications that keep users informed, not overwhelmed.

Push notifications for incoming and outgoing payments, card transactions, and pending items deliver real-time awareness without requiring users to open the app to stay updated.

One Interface. A Full Range of Banking Capabilities.

A well-designed mobile banking app should handle the full scope of everyday financial needs without becoming complicated.

Through a single interface, this app enables users to:

• View account balances, transaction history, account details, and statements
• Access a quick balance overview without logging in
• Execute internal, domestic, and international payments
• Process multiple payment orders with a single authorization
• Manage currency exchange and digital cash transfers from predefined limits
• Split payments into installments
• Activate, block, unblock, and replace debit and credit cards — and manage card limits
• Use biometric authentication for secure, fast login
• Access business-specific features, including creditworthiness certificate requests and POS-related statements
• Build savings habits through dedicated in-app tools

Whether the user is managing personal finances or running daily business operations, the app is built to handle it  on all major mobile platforms, with a consistent experience across devices.

The Technology Foundation: What Is Digital Edge?

Digital Edge is ASEE's strategic platform for digital banking. It is a modular, scalable solution that enables financial institutions to build, update, and expand their digital channels, including mobile banking apps, without disrupting existing services or starting from scratch with each new feature.

For this transformation, Digital Edge provided:

• A stable, high-performance native mobile architecture
• Server-side update capabilities that allow real-time improvements without requiring users to download new app versions
• Built-in alignment with current regulatory and security standards
• A scalable foundation for introducing new features as user and market needs evolve

According to ASEE's implementation experience, banks that build on a platform like Digital Edge can iterate faster, maintain stability under growing user loads, and respond to regulatory changes without major redevelopment cycles.

What This Transformation Demonstrates

Successful mobile banking app development is not about adding features; it's about making the right capabilities work together seamlessly. This project illustrates four principles that apply across the industry:

• UX must be designed in from the start, not layered on after architecture decisions are made
• Security is most effective when embedded into the app's core, not added as a secondary layer
• A single app can serve both retail and business users when navigation and feature access are structured correctly
• Scalable platforms enable continuous improvement without service disruption or complete rebuilds

Is your mobile banking app ready for what users expect next? Contact us.

Frequently Asked Questions

Core challenge: Build a mobile app that is intuitive, fast, and trusted, not just feature‑rich

Mobile banking has evolved into a core financial channel that customers use daily without thinking twice. However, simplicity for users is the result of careful planning, continuous iteration, and the right technology foundation.

The client is a top-tier bank in an EU member state by total assets, holding a market share that places it in the top tier of the domestic banking sector. The bank maintains a consistently strong position in both loans and deposits, confirming its role as one of the key players in the local financial market.

The Pressure Points

Banks face three major forces during a mobile transformation:

• Consistent user experience: Users expect apps that feel intuitive from their first interaction.

• Performance and responsiveness: Frequent updates and real‑time performance without interrupting users.

• Security and trust: Protecting data and transactions in line with regulatory standards.

The transformation needed to address all three without compromising usability or speed.

ASEE Approach & Solution

1. UI/UX System Designed for Simplicity

The app was redesigned around simplicity, consistency, and modern interface standards.

Reusable components enabled a cohesive experience across features and screens.

This scalable design system made future upgrades easier and kept navigation clear even as the app expanded.

2. Performance Built Into the Architecture

The mobile app used native mobile architecture combined with a backend‑driven UI.

This setup allowed updates and improvements to be delivered in real time without relying on traditional app store release cycles.

As a result, users experience a consistently fast and responsive app.

3. Security as a Foundation, Not an Afterthought

Security was integrated directly into the system architecture to ensure data and transaction protection at every stage.

The app aligned with leading regulatory frameworks and security standards, giving users confidence during both simple and complex interactions.

 Key Features Delivered

In addition to foundational redesign and architectural improvements, the transformation introduced features that streamline everyday banking:

• Digital wallet integration for secure digital payments.
• End‑to‑end in‑app loan processing, reducing the need for branch visits.
• Real‑time communication through live chat.
• Smart notifications to keep users informed and engaged.

All features were designed to simplify daily interactions, not add complexity.

Scalable Technology Foundation

This digital transformation was underpinned by ASEE’s Digital Edge platform, which enabled:

• Continuous modernization of digital channels
• Stability and scalability for evolving user needs
• Faster response to changing market demands

Digital Edge supports ongoing evolution, meaning the bank can innovate without disrupting service.

Results & Outcomes

While exact metrics were not published, this case demonstrates that successful mobile banking development:

• Achieved a trusted user experience through simplicity and design.
• Delivered a fast, responsive, and stable app environment.
• Embedded security into the core architecture, not as a secondary layer.
• Laid a scalable foundation for continuous growth and innovation.

Outcome: A future‑ready mobile banking experience that balances design, performance, and security.

Is your mobile banking app ready for what's next? We can help. Contact us.

Frequently Asked Questions

Mobile applications have become the primary interface between businesses and users. Banking, healthcare, e-commerce, and enterprise productivity rely on mobile apps to deliver critical services and handle sensitive data. But this convenience also makes mobile apps a high-value target for attackers.

The scale of the threat is significant. Cybersecurity reports show that more than 33 million mobile attacks were blocked in 2024 alone, averaging about 2.8 million attacks per month targeting smartphones.

Mobile malware and unwanted applications are also rising rapidly, with over 12 million attacks recorded in just the first quarter of 2025 on Android devices.

At the same time, application-level threats are increasing. In one industry report, the likelihood of attacks targeting Android apps rose from 34% in 2023 to 84% in 2024, showing how aggressively attackers are targeting mobile software itself.

Given this landscape, protecting the mobile application itself, not just backend systems, has become a core component of modern security strategies.

Two key techniques used to protect mobile apps are mobile application hardening and mobile application shielding. Although these terms are often used interchangeably, they address different stages of the attack lifecycle and serve different security purposes. Mobile app hardening and mobile app shielding are complementary protection approaches: hardening strengthens an app during development to remove weaknesses, while shielding adds runtime protection to defend the compiled app against active attacks.

Understanding the difference and how they work together is essential for building secure mobile applications.

What Is Mobile App Hardening?

Mobile app hardening is the process of improving an application’s security posture during development and refers to techniques that strengthen an application’s code and binary to make it more resistant to analysis, reverse engineering, and exploitation.

Unlike runtime defenses, hardening typically occurs during the development and build phase. The goal is to reduce the attack surface and make it significantly harder for attackers to understand how the application works.

This is particularly important because mobile apps run on untrusted devices. Attackers can download the application, decompile it, analyze the code, and attempt to manipulate its logic.

Hardening techniques help slow attackers down and protect sensitive application logic, intellectual property, and security mechanisms.

How Mobile App Hardening Works and What Are The Key Techniques

Code Obfuscation

One of the most widely used hardening techniques is code obfuscation, which transforms application code into a form that is difficult for humans to understand.

Common obfuscation methods include:

• Renaming classes and functions
• Control flow obfuscation
• String encryption
• Removing debugging information

Even though an attacker may still be able to decompile an app, obfuscation ensures the resulting code is difficult to interpret or manipulate.

For example, a mobile banking application may obfuscate its transaction validation logic to prevent attackers from identifying how transfers are verified.

Secure Secret Management

Hardcoded secrets, such as API keys or encryption keys, are a common weakness in mobile apps.

Attackers who reverse engineer an application often search for exposed credentials inside the binary. Secure secret management reduces this risk by using secure storage mechanisms.

Best practices include:

• Using platform security features such as Android Keystore or iOS Keychain
• Avoiding hardcoded credentials
• Generating keys dynamically when possible

These measures prevent sensitive secrets from being easily extracted from the application.

Secure Networking and Certificate Pinning

Mobile apps frequently communicate with backend APIs, making network security critical.

Without proper protections, attackers can intercept traffic through man-in-the-middle (MITM) attacks.

Hardening techniques in this area include:

• Enforcing HTTPS and strong TLS configurations
• Implementing certificate pinning
• Preventing connections to untrusted certificates

Certificate pinning ensures the mobile app only communicates with trusted backend servers, even if an attacker attempts to intercept the connection.

Secure Storage

Mobile applications often store local data such as authentication tokens, session information, or cached user data.

Hardening practices aim to prevent attackers from extracting this information.

Typical approaches include:

• Encrypting sensitive data at rest
• Avoiding plaintext storage
• Securing local databases
• Using platform-provided secure storage APIs

Dependency and Build Security

Modern mobile apps rely heavily on third-party libraries and SDKs.

While these dependencies accelerate development, they can also introduce vulnerabilities.

Secure development teams reduce this risk by:

• Regularly scanning dependencies for vulnerabilities
• Removing unused libraries
• Applying security checks within CI/CD pipelines

These practices help prevent attackers from exploiting weaknesses introduced through the software supply chain.

What Is Mobile App Shielding?

While hardening focuses on strengthening the application before it is released, mobile app shielding focuses on protecting the application while it is running on the device.

Mobile App Shielding introduces runtime defenses that detect and respond to attacks in real time.

These techniques are often associated with Runtime Application Self-Protection (RASP), where the application actively monitors its environment and behavior for suspicious activity.

Mobile App Shielding is particularly important because attackers often manipulate mobile apps during execution using debugging tools, emulators, or instrumentation frameworks.

Runtime protections help detect and block these activities.

How Mobile App Shielding Works  and What Are Common Mobile App Shielding Techniques

Root and Jailbreak Detection

Rooted or jailbroken devices remove many of the operating system’s built-in security restrictions.

Attackers frequently use these devices to bypass application protections.

Root and jailbreak detection mechanisms allow the app to identify compromised devices and restrict functionality if necessary.

This is why many banking apps refuse to run on rooted/jailbroken devices.

Debugger Detection

Attackers often attach debuggers to applications to observe behavior and modify execution flow.

Debugger detection techniques attempt to identify when a debugger is attached and respond accordingly.

Typical responses may include:

• terminating the application
• disabling sensitive functionality
• triggering additional security checks

Emulator Detection

Emulators are frequently used by attackers and researchers to analyze mobile applications.

Mobile App Shielding mechanisms can detect when the app is running in an emulator environment instead of a physical device.

If an emulator is detected, the application may limit functionality or shut down entirely.

Hooking Detection

Attackers commonly use hooking and instrumentation frameworks such as Frida or Xposed to manipulate application behavior at runtime.

These tools allow attackers to:

• bypass authentication checks
• modify application logic
• intercept sensitive data

Mobile App Shielding techniques attempt to detect these frameworks and prevent them from interacting with the application.

Tamper Detection and Anti-Repackaging

A common attack against mobile apps involves modifying the application binary and redistributing it.

Attackers may:

• remove security controls
• inject malware
• modify payment logic
• enable cheating in games

Tamper detection mechanisms check the integrity of the application during runtime.

If the binary has been altered or repackaged, the application can detect the change and prevent execution.

Mobile app Hardening vs. Mobile app Shielding: Key Differences in Mobile App Security

Why Combining Mobile App Shielding and Mobile App Hardening Works Best

Relying on a single layer of defense is rarely sufficient in mobile security.

Mobile app hardening alone may make an application difficult to analyze, but a determined attacker could still eventually reverse engineer it.

Mobile app Shielding alone may detect attacks, but if the application code is easily readable, attackers may quickly identify ways to bypass protections.

A blended approach combining both mobile app hardening and mobile app shielding significantly increases the effort required to compromise an application.

This layered model provides several advantages:

• Mobile app Hardening slows reverse engineering efforts
• Mobile app Shielding detects runtime manipulation
• Integrity checks prevent repackaged applications
• Runtime defenses respond to active attacks

Organizations in high-risk industries, such as banking, fintech, healthcare, and gaming, often implement both techniques as part of a defense-in-depth strategy. Without mobile app hardening, vulnerabilities may exist in production. Without mobile app shielding, protected code can still be analyzed and bypassed on compromised devices.

Mobile App Hardening vs. Mobile App Shielding FAQ

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For many teams, enabling R8 has felt like a reasonable and responsible step toward protecting application logic.

That perception is not wrong, but it is increasingly incomplete.

The way Android apps are attacked, analyzed, and replicated has evolved. Reverse engineering is no longer a niche skill practiced by a small group of experts. It is becoming faster, cheaper, and increasingly automated. In this new reality, relying on R8 alone is no longer sufficient for applications that carry meaningful business value.

R8 is not obsolete, but relying on R8 alone reflects an outdated threat model.

 What Was The Initial Purpose Of R8 Obfuscation?

At its core, R8 is an optimization tool, not a security solution. Its primary goals are to reduce application size, eliminate unused code, and improve runtime efficiency. Obfuscation is included, but it is not the central design objective.

This distinction matters because R8’s obfuscation focuses primarily on reducing readability through symbol renaming, while largely preserving the original logical structure of the application. Although this approach maintains correct behavior (as all obfuscation must), it leaves execution flow and intent relatively intact, making the app easier to analyze using modern automated and AI-assisted tools.

As a result, R8 introduces friction rather than true protection. It slows analysis, but it does not prevent it.

R8 Obfuscation vs. AI-Assisted Reverse Engineering

The rise of AI-assisted reverse engineering has dramatically changed how app analysis is done, as well as who is able to do it. What previously required days of manual effort by skilled specialists can now often be achieved in minutes using automated tooling and large language models.

AI systems do not rely on variable names to understand software. They analyze structure, patterns, API usage, and behavior. Renamed symbols offer limited resistance to this type of analysis. In many cases, AI can infer intent, reconstruct abstractions, and explain application logic in plain language despite heavy renaming.

“R8 was designed to slow down humans while modern reverse engineering increasingly relies on machines.”

This shift significantly reduces the defensive value of basic obfuscation techniques.

Why R8’s Predictability Has Become a Weakness

Because R8 is widely adopted, extensively documented, and consistently applied, its output is highly predictable. Attackers understand what R8-obfuscated code looks like, how it behaves, and how to process it efficiently.

Decompilers, analysis frameworks, and automated pipelines are already optimized to handle R8 output. What once introduced meaningful friction has become a standardized preprocessing step in many reverse engineering workflows.

In security, predictability is rarely an advantage. When attackers know exactly what to expect, defensive value erodes quickly.

R8 Obfuscation Still Exposes Business Logic and Intent

Even with R8 enabled, reverse-engineered Android apps often continue to reveal sensitive information. Feature gating logic, licensing checks, API workflows, fraud detection mechanisms, and proprietary algorithms typically remain visible to anyone willing to inspect the decompiled output.

While names may be obscured, intent is not. For enterprise app owners, this creates tangible risk. Business logic can be studied, replicated, or bypassed, undermining competitive differentiation and revenue protection.

R8 hides labels, not meaning, and meaning is what attackers are after.

R8 Is a Build-Time Tool in a Runtime Threat Landscape

R8 operates entirely at build time. Once the application is compiled and distributed, its role is effectively complete. It does not observe runtime behavior, respond to hostile environments, or defend against dynamic attacks.

Modern Android threats increasingly target running applications through techniques such as hooking, instrumentation, memory inspection, and repackaging. These attacks do not depend solely on understanding source code, instead, they exploit runtime behavior.

Because R8 provides no runtime awareness or self-protection, it cannot address this growing class of threats.

R8 vs. Modern Obfuscation Solutions: A Capability Gap

R8 is best understood as a baseline layer, while modern obfuscation solutions are designed as active defensive systems.

This comparison highlights a structural difference. R8 focuses on efficiency and basic concealment, while modern obfuscation focuses on raising attack cost, disrupting understanding, and actively resisting analysis throughout the app lifecycle.

Why R8 Alone Is Becoming a Business Risk

Mobile applications now embed logic that directly impacts revenue and competitive advantage. Pricing rules, entitlement checks, fraud prevention systems, recommendation engines, and proprietary algorithms are no longer supporting elements - they are core business assets.

As reverse engineering becomes more accessible and automated, exposure of this logic carries real financial and reputational consequences. At the same time, regulatory and compliance expectations are increasing, particularly in industries such as finance, media, gaming, and e-commerce.

In this context, relying solely on R8 is no longer a conservative choice, but a fragile one.

What Would be a Realistic Android Security Strategy Beyond R8? 

The goal is not to abandon R8. It remains a valuable part of the Android ecosystem, improving performance and providing baseline obfuscation at minimal cost.

However, a realistic security posture recognizes that R8 is only a starting point. Enterprise-grade protection increasingly requires layered defenses that combine build-time obfuscation with runtime protection, logic transformation, and active resistance to tampering and analysis.

This layered approach aligns with how modern attacks actually operate.

 Why Is R8 No Longer Enough On Its Own?R8 remains useful, but it was designed for a different era. It was not built to counter AI-assisted reverse engineering, automated attack pipelines, or runtime manipulation of applications.

As threats evolve, defensive strategies must evolve with it. For organizations that depend on Android applications to protect revenue, intellectual property, and user trust, R8 alone is no longer enough.

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What is Ongoing Call Detection?

Available for both iOS and Android,  this feature allows the app to detect when a call is in progress while the application is running.

Why does that matter?

Phone calls have become one of the most dangerous attack vectors in modern mobile fraud.

Ongoing Call Detection adds an extra line of defense against voice-based social engineering attacks, helping identify situations where users may share confidential information over the phone while using your app.

The Problem: Social Engineering in the Age of Smartphones

It starts with a phone call.

A scammer poses as someone from the user’s bank or a trusted support team. They explain there's a problem with the user’s account - perhaps suspicious activity or a blocked transaction. To "resolve" it, they ask the user to open their mobile banking app immediately.

Trusting the voice on the line, the user unlocks their phone and opens the app.

At that moment, Ongoing Call Detection activates.

The app notices that a call is in progress. Depending on the configuration, one of two things happens:

• The app automatically shuts down, preventing any further access or data from being displayed while the call is ongoing.
• Or, it displays a warning message:

“You're currently on a call. Be cautious - never share login credentials or security codes over the phone.”

This subtle disruption can be all it takes to break the attacker’s momentum and make the user think twice.

These attacks aren’t theoretical. They happen every day, especially to less tech-savvy users. But with Ongoing Call Detection, your app becomes part of the defense - alert, aware, and ready to intervene at the exact moment when necessary.

How the App Responds to Ongoing Call Detection

One of the key strengths of the Ongoing Call Detection feature is how configurable and adaptive it is. Much like other mobile threat detections, such as screen recording, jailbreak, or rooting, this detection is fully integrated into the configuration wizard, allowing for tailored responses based on app requirements or individual user profiles.

Here are the available reaction options when a call is detected:

1. Notify the End-User

The app can show a clear, contextual warning to the user, such as:

“You're currently on a call. Be cautious about sharing sensitive information. This call may not be secure.”

This soft intervention is ideal for encouraging safer behavior without interrupting the user experience.

2. Terminate the App

In higher-risk environments, such as financial, government, or enterprise apps, the app can be configured to automatically shut down when a call is detected, especially during sensitive operations like logging in, accessing data, or making payments.

This hard stop ensures no information is unintentionally leaked or submitted under pressure.

3. Generate False Values

A unique and clever security approach - the app can be set to return fake or redacted information during a call session. For example, instead of showing real account balances, personal details, or confirmation codes, the app may display placeholder or zero values until the call ends.

This approach protects users from being manipulated in real time while maintaining session continuity.

Targeted Configuration Options

This detection is not one-size-fits-all. You can configure responses at two levels:

• Per Mobile App – Define global behaviors for all users of a specific app version.
• Per User – Apply tailored policies for high-risk individuals or user groups (e.g., VIP clients, internal employees, etc.).

Important to mention, Ongoing Call Detection is not classified as a “mobile app attack” and is treated separately in reporting and monitoring. This ensures accurate analytics and better separation between environmental context and actual device compromise.

Ongoing Call Detection Use Cases

Here are some realistic scenarios where this feature can prove to be useful:

1. Banking App + Fake Bank Call

A user receives a call claiming to be from their bank’s fraud department while logging in to the mobile banking app. The scammer would typically claim something like “We've just detected suspicious activity, please confirm your credentials.” Ongoing call detection would stop the user from logging in to the banking app and unknowingly share sensitive information with the scammer.

2. Payment App + Phishing Attack

During a call from someone pretending to be a merchant or family member, a user opens a peer-to-peer payment app to send money. The scammer guides them through steps to send funds under false pretenses. In case the ongoing call detection is implemented, such scams would simply fail.

3. 2FA Interception Scam

Scammers sometimes convince users to read out one-time passcodes (OTPs) from their authenticator apps.

If Ongoing Call Detection is active when the user attempts to generate an OTP, the app could:

• Terminate immediately.
• Generate false OTPs.

4. Enterprise/Work App Confidentiality

A remote employee on a call with someone impersonating IT support opens a corporate app. The app detects the call and triggers a warning about potential phishing or data leaks, encouraging the employee to confirm the support agent’s identity.

Wrap Up: Ongoing Call Detection For Contextual Security

Ongoing Call Detection adds context awareness to mobile security - a crucial step in staying ahead of fraudsters who rely not on technical exploits, but human vulnerability.

Security isn't just about encryption and authentication anymore. It's about understanding the context in which users interact with your app. By recognizing the risks introduced by phone calls during sensitive moments, we can protect users at their most vulnerable.

Let us know how you’re planning to integrate Ongoing Call Detection in your app, and stay tuned for more proactive security tools in the pipeline.

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A recent report cites some alarming contradictions when it comes to developing secure mobile applications. While 91% of surveyed organizations claim they are not releasing unprotected mobile apps, 87% report a mobile application security incident in the past year.

Moreover, 93% of organizations are confident they understand the risks that come with releasing insecure mobile apps. At the same time, 67% state that OS-provided protection (iOS and Android) is enough to make an app secure.

In case these numbers don't make you fidgety as an app owner/developer, maybe the following one will. The average cost of a mobile application security incident in 2024 was $4.97 million.

Is that what it takes to make you rethink your mobile app security strategy and start implementing it from the first stages of development? If you're ready to develop mobile apps responsibly, read on to find out more about the mobile application security best practices and mechanisms that secure your app, its users, your business, and your reputation. 

Top 15 Mobile Application Security Best Practices

1. Static and dynamic analysis are your jumpstart allies.

Security testing should be an ongoing process. Utilize static and dynamic analysis tools to detect vulnerabilities early in the development cycle. Automated security testing can identify common issues such as insecure data storage, weak authentication, and API vulnerabilities.

2. Choose security over speed. Always.

Integrating security shouldn’t slow down development. Use DevSecOps methodologies to ensure security is incorporated from the beginning without hindering deployment speed. Automated security checks can streamline the process.

3. Securing your app means securing your code.

Hackers frequently exploit vulnerabilities in source code. Minimize risks by encrypting source code, applying code obfuscation techniques, and using secure coding practices to prevent reverse engineering attacks.

4. Encrypt data both at rest and in transit.

Implement end-to-end encryption to secure sensitive data. Even if attackers intercept data, strong encryption ensures actors with unauthorized access cannot use it.

5. Update the OS version for the latest security patches.

Outdated operating systems and development frameworks contain vulnerabilities that hackers exploit. Ensure regular updates and security patches for iOS, Android, and third-party libraries to protect against known exploits.

6. Ditch passwords. Use strong user authentication.

Plain and simple - weak authentication leads to unauthorized access. Use multi-factor authentication (MFA), biometrics, and/or SSO to enhance security.

7. Be very selective with third-party libraries.

Third-party libraries can introduce vulnerabilities if they’re not regularly updated or reviewed. Use only well-vetted, frequently updated libraries, and avoid untrusted sources.

Why? Hackers tend to publish pre-written code on such platforms. This code usually contains some kind of malware that is injected into your app. What happens next is up to the attacker.

8. Implement Integrity Checking

Integrity checking ensures that the application's code and critical files have not been altered. Use cryptographic checksums, digital signatures, and hash functions to detect unauthorized modifications. This helps prevent tampering, malware infections, and unauthorized updates.

Check out our webinar to learn more!

9.  Store only necessary data on devices.

Store only essential user data on mobile devices. If storing sensitive information is necessary, use encrypted local storage and implement auto-deletion policies for old data.

10. Implement App Shielding.

App shielding techniques such as runtime application self-protection (RASP) and anti-tampering mechanisms protect mobile apps from reverse engineering and unauthorized modifications.

RASP allows you to keep a constant watch on the mobile app's ins and outs. In case any tampering is detected you can set an appropriate response varying from displaying bogus OTPs to terminating the app immediately.

11. Install Tamper Detection Mechanisms.

Integrate anti-tampering technology that detects and prevents debugging, emulation, and root/jailbreak modifications to enhance security.

12. Backup Data Securely.

Implement automatic and encrypted backups to cloud storage or secure servers. In case of data corruption or breaches, backups should enable quick recovery.

13. Secure APIs from Attacks.

Most mobile apps rely on APIs. Use API gateways, enforce authentication, and validate inputs to prevent API-based attacks such as SQL injections, man-in-the-middle attacks, and DDoS threats.

14. Conduct Penetration Testing.

By simulating mobile cyberattacks through ethical hacking and penetration testing you can easily find weak links in your security. This should reveal existing vulnerabilities that can be addressed quickly.

15. Use Code Obfuscation Techniques.

Code obfuscation scrambles the structure of your application, making it harder for attackers to reverse-engineer it. Obfuscation is just another word for complexity, so, basically, you're giving attackers a hard time while trying to figure out your apps code.  This technique prevents malware injection and intellectual property theft.

Wrap up

Still willing to risk your app by only relying on OS protection? That's okay – we'll keep updating the article so you can come back to our mobile application security best practices later and start from ground zero.

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In case you're proactive and want to do things the right way, feel free to contact our mobile app security experts for more advice.  

Without an integrity check in place, attackers can modify your app’s code, bypass security mechanisms, and compromise user trust. In this article, we’ll discuss why integrity checks are crucial for mobile app security and how they protect both your app and your users from tampering.

What Does Integrity Check Mean for Mobile Apps?

Integrity is a data property that ensures that the data or the app’s code has not been altered. This includes either by accident or by malicious intent. In terms of cybersecurity, integrity is a core part of the CIA triad. CIA generally stands for Confidentiality, Integrity, and Availability. While confidentiality protects data from unauthorized access, availability ensures data is accessible when needed. Integrity, our main topic, guarantees that the data or app code has not been inappropriately altered.

For mobile apps, integrity is especially important. If attackers are able to compromise an app’s integrity, they can change its behavior, introduce harmful code, or bypass security measures. All of thiscan lead to security breaches, financial loss, and reputational damage.

Real-World Examples of Integrity Check Breaches

To better understand how important it is to include integrity check in your security strategy, let’s look at some real-world examples where the integrity of mobile apps was compromised:

1. Spotify Premium Hack: Attackers altered the app to unlock premium features without paying, resulting in lost revenue and user trust.
2. Pokemon GO Location Tracking Bypass: Hackers bypassed the app’s location-tracking features. This allowed players to earn rewards without physically moving – one of the main ideas behind the app.
3. Fake Banking App Attacks: Attackers distribute counterfeit apps to steal user data. These apps are made to look like legitimate banking apps but are actually designed to steal sensitive user information.

Each of these examples illustrates how compromising the app's integrity leads to the mentioned damage. Whether it's financial loss, losing user trust, or reputational damage, you should maintain the integrity of your mobile application intact.

Why Mobile App Integrity Check Is Essential

For app developers, maintaining the integrity of their applications is one of the most important aspects of mobile security. Without proper protection, attackers can modify the app, inject malicious code, or distribute altered versions through unofficial channels. The integrity check detects and prevents these risks by verifying the app code is the same as the original code.

Here are some reasons why integrity check should be included in every mobile app:

• Detects Code Manipulation: It can spot any unauthorized attempts to modify the mobile app’s code or behavior.
• Improves Security: Integrity checks add an extra layer of protection against attacks that may bypass other security measures.
• Prevents Reverse Engineering: It makes it more difficult for attackers to reverse-engineer the app’s code to find vulnerabilities.
• Ensures App Runs on Secure Devices: It can detect if the app is running on a rooted or jailbroken device, which makes mobile apps more vulnerable to attacks.
• Protects Against App Cloning: Modified versions of the app, often used for phishing or fraud, can be identified and blocked.

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Benefits of Integrity Checks for Penetration Testing

Now, let’s look at how integrity checking plays a key role in penetration testing. Pen testing helps identify vulnerabilities in your app, and implementing integrity checks makes these tests more effective by ensuring the app’s security is accurately assessed. Here are the main benefits of using integrity checks during penetration testing:

1. Tamper Detection

Integrity checks are essential for detecting unauthorized modifications to your app’s code or resources. During a penetration test, these checks ensure that the app is functioning as intended, without any alterations or injected malicious code. This guarantees that the test results are accurate, and the app’s behavior remains consistent, free from external tampering. Pen testers can rely on this to verify that vulnerabilities are not artificially created or altered during testing.

2. Runtime Verification

Integrity check mechanisms actively monitor your app’s behavior during execution. They can detect anomalies such as injected code or other unexpected actions triggered by debugging tools or manipulation techniques often used in penetration testing. This real-time monitoring ensures that any attempt to manipulate the app’s runtime environment is immediately flagged, offering instant insight into potential vulnerabilities.

3. Response to Breaches

One of the most impressive aspects of integrity checks is their ability to trigger defensive actions when tampering is detected. For example, if penetration testers attempt to alter the app or inject malicious code, the integrity check mechanism can automatically shut down the app or disable critical functionalities, preventing further exploitation. This proactive defense mechanism not only impresses penetration testers but also strengthens the overall security of your app by demonstrating the presence of real-time threat response capabilities.

4. Compliance Demonstration

Many regulatory frameworks, such as PCI-DSS, require apps to have integrity measures in place to ensure the secure handling of sensitive information. During penetration testing, integrity checks help demonstrate that your app meets these compliance requirements. By implementing integrity checks, you not only improve security but also ensure that your app adheres to important industry standards, making it easier to pass audits and certifications.

How ASEE Integrity Check Enhances App Security

One effective tool for ensuring app integrity is the ASEE Integrity Check solution. Available for both iOS and Android, ASEE Integrity Check protects apps from tampering by verifying that the app’s code has not been altered - and here’s how it works:

1. App Footprint Calculation: After the app is developed and ready for release, ASEE Integrity Check calculates a secure digital signature of the app’s code, known as its “footprint.”
2. Publish the App: The app is then published to the app store.
3. Runtime Integrity Checks: After users download the app, ASEE Integrity Check runs runtime checks to ensure that the app’s code hasn’t been altered since it was first published.

This solution helps detect tampered apps in real-time, providing protection against unauthorized changes.

Types of Integrity Checks

ASEE Integrity Check offers two types of verification methods:

• Online Integrity Check: This method checks the app’s integrity in real-time through communication with a server. It provides protection against runtime attacks and helps ensure the app hasn’t been installed on an unsafe device. An internet connection is required.
• Offline Integrity Check: This method verifies the app’s integrity locally, without needing an internet connection. It compares the app’s stored signature to the original but doesn’t offer real-time protection against runtime attacks.

Wrap Up

If your mobile app’s integrity is compromised, the consequences are clear - security breaches, financial loss, damaged brand reputation, you name it.  Integrity checks are the frontline defense against these risks.

By implementing a solution like ASEE Integrity Check, you ensure that your app remains exactly as it was intended, preventing malicious modifications and protecting users from harm. In times when every breach could mean financial loss, regulatory penalties, or customer distrust, the integrity of your app isn’t just a technical concern - it's a business priority.

Android, with its rich app ecosystem, is particularly vulnerable to these types of attacks. For developers and security experts, understanding these risks and implementing effective defenses is essential.

This article will focus on the tactics cybercriminals use to compromise Android devices and explore how Runtime Application Self-Protection (RASP) SDK can help app developers protect their applications and users from remote access threats.

What Makes Android Particularly Vulnerable to Remote Access Attacks?

The flexibility of Android’s open-source operating system, while a key strength, also provides opportunities for exploitation. The Android environment allows for extensive customization, third-party app installations, and permission requests, which attackers often exploit. Additionally, the variety of Android devices and OS versions creates a fragmented ecosystem, making it difficult to enforce uniform security standards across the platform.

Remote access attacks on Android often exploit this flexibility through tactics like:

• Malicious Apps with Elevated Permissions: Cybercriminals use fake apps or apps that mimic popular services to gain permissions that allow them to access sensitive information.
• Overlay Attacks and Accessibility Exploits: Android’s overlay and accessibility services, while intended for usability, are exploited by malicious apps to capture data input, screen information, and manipulate device interactions.
• Screen Recording and Monitoring: Some malware takes advantage of screen recording permissions to view all activities on the device without alerting the user.

How RASP SDK Helps Protect Android Apps from Remote Access Threats

Runtime Application Self-Protection (RASP) SDK is a powerful tool that offers app developers real-time security by monitoring and responding to threats as they occur. While traditional app security methods focus on detecting malware after installation, RASP SDK focuses on detecting suspicious activities while the app is running, making it an ideal solution for protecting Android applications from remote access attacks. Here’s how RASP SDK addresses Android-specific security challenges:

1. Screen Overlay Detection

Screen overlay attacks are particularly common on Android, as malicious apps can use this feature to create deceptive interfaces over legitimate apps. RASP SDK includes screen overlay detection, which can alert the app in case of an overlay attempt. Our advice is to integrate this functionality across all screens within the app to ensure comprehensive protection against phishing overlays and permission hijacking attempts.

2. Accessibility Permission Monitoring

Many Android-based remote access attacks exploit the accessibility permissions granted to malicious apps. Accessibility services help users with disabilities but can be misused by attackers to gain elevated control over the device. RASP SDK monitors accessibility permissions in real-time, detecting suspicious attempts by malware to access app data, especially in sensitive applications like banking or healthcare. This detection is particularly effective in stopping RATs and overlay attacks from accessing confidential data.

3. Screen Recording Detection (Android 14+)

With Android 14+, RASP SDK can detect screen recording attempts, preventing attackers from capturing real-time app interactions. This feature is essential for high-security apps, as it stops attackers from observing sensitive information such as user credentials, personal messages, or financial data.

4. In-App Security Notifications

In addition to its detection capabilities, RASP SDK allows developers to program in-app responses or notifications in case of suspicious app behavior. For example, if a screen overlay or accessibility service access is identified, the app can display a warning to the user or terminate the session to protect sensitive data. These alerts provide an added layer of protection, especially for apps that handle confidential information.

Enhancing Android App Security: Best Practices Beyond RASP SDK

While RASP SDK provides robust protection, it’s most effective when combined with other security best practices tailored to Android environments:

1. Implement Strict Permission Controls: Limit app permissions to only those necessary for functionality, and encourage users to be cautious about granting permissions to other apps.
2. Code Obfuscation: Minimize the risk of reverse engineering with code obfuscation, making it harder for attackers to study the app’s structure and inject malicious code.
3. Regular Security Audits: Conduct regular security assessments to identify vulnerabilities that attackers might exploit.
4. Frequent Updates and Patches: Release timely updates to patch security vulnerabilities and remain compatible with Android security advancements, especially with new releases like Android 14.
5. User Education: Educate users about security best practices, such as avoiding app downloads from unofficial sources, being cautious with permissions, and regularly checking for unusual app activity.

Limitations of RASP SDK in Android Remote Access Protection

While RASP SDK offers critical security for Android applications, it has some limitations developers should be aware of:

• Malware Detection on the Device: RASP SDK does not detect malware directly on the device; it only monitors for suspicious activity within the app.
• Comprehensive Permission Control: RASP SDK cannot control permissions outside accessibility permissions, nor can it limit permissions granted to third-party apps.
• Non-Automated Overlay Detection: Overlay detection is not fully automated, requiring developers to ensure that all screens within the app are covered.

For a holistic security approach, developers should consider integrating RASP SDK with other tools, such as Mobile Threat Defense (MTD) solutions and behavioral monitoring systems.

Wrap up

Android’s open-source design and extensive app ecosystem make it a prime target for remote access attacks. With the right security measures, however, developers can protect their apps and users from these sophisticated threats. RASP SDK’s real-time monitoring, screen overlay detection, accessibility permission checks, and screen recording detection (from Android 14+) offer essential layers of defense against remote access attacks.

Developers building high-security applications—particularly in sectors like finance, healthcare, and enterprise—should consider implementing RASP SDK to provide users with the protection they need. With comprehensive security practices and proactive threat detection, Android developers can create trusted, resilient applications that stand up to the ever-evolving tactics of cybercriminals.

Download App Protector SDK

App Protector SDK is a mobile security component built into the application's code enabling runtime protection as well as a variety of mobile application hardening techniques, including jailbreak detection.

Try App Protector Free

To find out more about our App Protector solution, contact us or visit our blog section.  

By employing advanced security mechanisms such as anti-tampering, RASP (Runtime Application Self-Protection), integrity checking and more, you can drastically reduce vulnerabilities and create an app that resists various forms of attack.

Here’s a breakdown of the most effective security solutions to ensure you pass your mobile app penetration testing stress-free.

1. Anti-Tampering, Anti-Debugging, and Anti-Reverse Engineering Mechanisms

One of the primary focuses of any penetration test is to discover vulnerabilities that could allow attackers to tamper with or reverse-engineer your app. Anti-tampering mechanisms protect your app from unauthorized modifications, such as patching the binary or altering system-level files. When attackers attempt to modify an app’s code, anti-tampering measures can detect these efforts and block the application from functioning.

Adding anti-debugging tools prevents attackers from using debuggers to analyze how your app works, stopping them from uncovering vulnerabilities or bypassing certain security measures. Anti-reversing mechanisms make it more difficult for attackers to decompile or disassemble the application, especially when coupled with code obfuscation.

These measures are crucial for stopping an attacker before they even gain an understanding of how your app functions. Many successful hacks rely on the attacker’s ability to reverse-engineer code and modify it. Anti-tampering and anti-debugging mechanisms thwart this, allowing you to pass mobile app pen testing by demonstrating robust defenses against these common attack vectors.

2. Preventing Binary Patching and Unauthorized System-Level Changes

Pen testers often try to manipulate the core binaries or system-level files of an application to exploit weaknesses. Without protection, your app’s binaries can be patched, allowing attackers to alter the app’s behavior or bypass security features. This is where binary integrity checking becomes invaluable. Integrity checking continuously monitors the app’s code, ensuring that the binaries remain unaltered during runtime.

RASP (Runtime Application Self-Protection) is a highly effective solution in this context as well. RASP actively monitors an app’s execution and detects suspicious changes in real-time, such as unauthorized attempts to patch binaries or modify system files. By incorporating RASP, you add an active, self-defending layer that prevents these kinds of attacks from succeeding. This proactive approach strengthens your app’s defenses during a pen test and ensures that unauthorized changes are detected immediately.

3. Jailbreak and Root Prevention

Rooting (on Android) or jailbreaking (on iOS) removes important security restrictions, giving attackers full control over the device and the applications running on it. A successful mobile app penetration test will attempt to exploit these compromised environments to bypass security features and access sensitive data.

To pass your pentest, your app should include jailbreak/root detection and prevention mechanisms. In case a device has been compromised the mechanism either blocks the app from running or restricts functionality. This ensures that attackers cannot exploit a rooted or jailbroken device to access your app’s core functions. Jailbreak and root prevention can be implemented using RASP, as it monitors device integrity and takes immediate action if a device appears compromised.

4. Data Encryption: Protecting Data at Rest

Data stored on a device, whether in the app’s sandbox, preferences, or offline storage, can be an attractive target for attackers. To pass a penetration test, it’s essential that all sensitive data is encrypted while at rest. This includes encrypting data in XML strings, resources, DEX files, and offline databases.

By using strong encryption algorithms to secure data at rest, you ensure that even if an attacker gains physical access to the device or its storage, they will not be able to read or modify sensitive information. This is a critical aspect of mobile app security. Having strong encryption mechanisms in place greatly reduces the likelihood of a breach.

5. Code Obfuscation: Protecting Native and Non-Native Code

During a pentest, attackers will often try to reverse-engineer the apps' code to understand how the app works and uncover vulnerabilities. Code obfuscation is a powerful technique that makes the code harder to read and analyze. By obfuscating both native and non-native code, libraries, and key algorithms, you make it significantly more difficult for attackers to reverse-engineer or modify your app.

Obfuscation techniques include relocating control flows, stripping debug information, and adding junk code to confuse or mislead attackers. This adds an extra layer of security during a penetration test, making it much harder for attackers to gain insight into your app’s structure and logic. When combined with anti-debugging and anti-reversing, code obfuscation becomes a vital part of your app’s overall security posture.

A Proactive Approach to Mobile App Security

Throughout this article, we’ve touched on various solutions that form the foundation of a strong mobile app security strategy. RASP is particularly effective as it provides real-time protection, detecting attacks as they happen and stopping them before they can cause damage. RASP works in tandem with integrity checking and anti-tamper detection, ensuring that your app remains protected against binary patching, debugging, and other forms of tampering.

By combining RASP with solutions like code obfuscation, data encryption, and secure communications, you create a multi-layered security approach that will help you pass your pen test painlessly. These measures make it difficult for attackers to reverse-engineer or modify your app, while also protecting sensitive data from unauthorized access.

Passing a mobile app penetration test doesn’t have to be a painful process. By integrating the above-mentioned solutions you can boost your app’s defenses. By proactively addressing potential vulnerabilities and implementing these advanced security measures, you can ensure your app passes the pen test, while also safeguarding your users and maintaining compliance with industry regulations.

App Protector by ASEE

App Protector by ASEE is a security solution prioritizing mobile app security. It seamlessly integrates with the app's runtime environment, offering early-stage intrusion detection, real-time attack prevention, and control over the app's execution. App Protector shields mobile applications from various threats, such as emulator attacks, jailbreak/root detection, debugging, screen recording, and hooking attempts.

Download App Protector SDK

App Protector SDK is a mobile security component built into the application's code enabling runtime protection as well as a variety of mobile application hardening techniques, including jailbreak detection.

Try App Protector Free

To find out more about our App Protector solution, contact us or visit our blog section.