Every mobile application your business builds or buys is a potential doorway for attackers. But how do you know if your app is actually secure? That is where the OWASP Mobile Application Security Verification Standard comes in. MASVS is the industry benchmark for mobile app security, and understanding what it tests is the first step toward knowing whether your iOS or Android app can withstand a real attack.

What Is OWASP MASVS?

The Open Web Application Security Project maintains the Mobile Application Security Verification Standard as a freely available framework that defines what a secure mobile application looks like. Think of it as a checklist built by thousands of security researchers and practitioners from around the world, covering everything from how your app stores data to how it communicates with your servers to whether an attacker can reverse-engineer your code.

MASVS is not a tool you run against your app. It is a set of security requirements organized into categories, and each category addresses a different attack surface. When we perform mobile application penetration testing at Innovation Network Design, we map every finding directly to MASVS categories so you get a clear picture of exactly where your app meets the standard and where it falls short.

The Eight Security Categories MASVS Covers

Data Storage and Privacy

This is where most mobile apps fail their first assessment. MASVS checks whether your app stores sensitive data in places attackers can reach. On Android, this means examining SharedPreferences, SQLite databases, external storage, and application logs. On iOS, it means checking the Keychain implementation, plist files, and Core Data storage.

The most common finding our CyberOne MobileAssess platform catches is sensitive data like API keys, authentication tokens, and sometimes even passwords stored in plaintext on the device. If someone loses their phone or installs a malicious app, that data is exposed.

Cryptography

Mobile apps often implement encryption incorrectly even when they use it. MASVS evaluates whether your app uses current cryptographic algorithms (not deprecated ones like DES, RC4, MD5, or SHA-1), whether encryption keys are properly managed (not hardcoded in the source code), and whether the implementation follows secure patterns.

We routinely find apps using AES in ECB mode, which leaks patterns in the encrypted data, or using CBC mode with PKCS padding that is vulnerable to padding oracle attacks. These are not theoretical risks. Attackers have well-documented tools to exploit these weaknesses.

Authentication and Session Management

How does your app verify who the user is? MASVS tests the entire authentication flow including biometric bypass attempts, session token generation and storage, OAuth implementation, and multi-factor authentication enforcement. A weak authentication implementation can let an attacker hijack user sessions or bypass login entirely.

Network Communication

Even if your app encrypts data at rest, sending it over an insecure connection defeats the purpose. MASVS checks for cleartext HTTP traffic, verifies TLS implementation, tests certificate pinning, and looks for hostname verification bypasses. Our MobileAssess platform flags every cleartext HTTP endpoint in your application code and verifies whether your network security configuration actually enforces secure transport.

Platform Interaction

Mobile apps interact with the operating system through permissions, exported components, content providers, and inter-process communication. MASVS evaluates whether your app requests more permissions than it needs, whether exported activities or services are accessible to malicious apps, and whether deep links and push notification handlers are properly secured.

On Android specifically, exported components like activities, services, broadcast receivers, and content providers can be accessed by any other app on the device unless they are explicitly protected. This is one of the most commonly overlooked attack surfaces we find.

Code Quality

This category covers the source code itself. MASVS looks for SQL injection patterns in raw database queries, insecure random number generators used in security contexts, logging of sensitive data, and proper input validation. Our platform decompiles your app to source code and scans over 10,000 files for 11 distinct security patterns across these categories.

Anti-Tampering and Reverse Engineering

Can an attacker modify your app and redistribute it? Can they attach a debugger to inspect runtime behavior? MASVS evaluates root and jailbreak detection, anti-tampering mechanisms, debuggable flags, and code obfuscation. While no protection is perfect, layers of defense make it significantly harder for attackers to reverse-engineer your business logic.

Binary Protections

For apps that include native libraries (written in C or C++), MASVS checks for NX bit verification, position-independent executable compilation, stack canary protection against buffer overflows, and RELRO hardening. These are low-level protections that prevent entire categories of memory corruption attacks.

Why Automated Scanners Are Not Enough

Some teams rely on automated mobile scanning tools and consider the job done. The problem is that automated tools can check whether certain flags are set or certain APIs are called, but they cannot understand your application logic. They will not find that your payment processing flow can be bypassed by replaying a modified API request. They will not discover that your authentication token never expires, even after a password change. They will not notice that your admin panel is accessible from the mobile app if you know the right URL path.

That is why our approach at Innovation Network Design combines the speed of MobileAssess automated scanning with manual expert testing by our security team. MobileAssess handles the systematic checks across all MASVS categories, and our analysts dig deeper into business logic, authentication flows, and data handling patterns that no automated tool can evaluate.

How This Connects to Your Overall Security

Mobile app security does not exist in isolation. Your mobile app talks to backend APIs, which run on servers, which sit on networks. A vulnerability in your mobile app can be the entry point that leads to a full server compromise. That is why we recommend combining mobile app testing with network penetration testing and 24/7 managed SOC monitoring for complete coverage.

If your organization handles patient data, HIPAA compliance requires that mobile access points be included in your security risk assessment. If you process payments through a mobile app, PCI DSS requires testing of all components in the cardholder data environment, including mobile.

Getting Started

If you have never had your mobile application tested against OWASP MASVS, the first step is a baseline assessment. Our team will scope the engagement, test your app across all MASVS categories using the Penetration Testing Execution Standard methodology, and deliver a detailed report mapping every finding to the specific MASVS requirement it violates.

From there, you can address the highest-risk findings first and schedule follow-up testing as your development team makes changes. For organizations that ship updates frequently, our continuous testing engagements cover every version change for up to a year.

Contact our McKinney-based team or call 512-518-4408 to schedule your mobile app security assessment.

What OWASP MASVS Tests and Why Your Mobile App Needs It