Mobile Security

Mobile Application Penetration Testing

Mobile applications expose data beyond the network perimeter and run on devices you don’t control. Our CREST Pathway certified consultants test your iOS and Android apps for vulnerabilities in client-side logic, data storage, and backend communications.

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Understanding the Risk

What is Mobile Application Penetration Testing?

Mobile apps operate in an untrusted environment. Unlike server-side applications, mobile apps run on devices that users control — meaning attackers can reverse-engineer the app, intercept network traffic, and access locally stored data with relative ease.

We test the full attack surface. Our consultants assess your mobile application from the client-side binary through to the backend APIs it communicates with, covering data storage, transport security, authentication, and runtime protections.

Testing follows the OWASP Mobile Testing Guide. We use the OWASP MASTG framework to ensure comprehensive coverage of mobile-specific risks that generic web application testing would miss entirely.

The Case for Testing

Why Your Mobile Apps Need Penetration Testing

Apps run on untrusted devices

Users can jailbreak or root their devices, install interception proxies, and decompile your app binary. Mobile testing verifies your app is resilient to these real-world conditions.

Sensitive data at risk

Mobile apps often cache credentials, tokens, and personal data on the device. Testing confirms this data is properly encrypted and not leaking to logs, backups, or shared storage.

Transport security matters

Certificate pinning, TLS configuration, and API communication security are critical on mobile. A single misconfiguration can expose all traffic to interception.

Platform-specific risks

iOS and Android have different security models, permission systems, and common weaknesses. Testing both platforms ensures full coverage of your mobile attack surface.

App store compliance

Both Apple and Google are increasing their security review requirements. Proactive testing helps ensure your app meets platform guidelines and avoids rejection or removal.

How We Work

Our Testing Approach

Static Analysis

We decompile and review your app binary for hardcoded secrets, insecure configurations, embedded API keys, and weaknesses in code obfuscation or tamper detection.

Dynamic Analysis

We run your app on real and emulated devices, intercepting network traffic, manipulating runtime behaviour, and testing how the app handles hostile input and unexpected conditions.

Data Storage Review

We examine how your app stores sensitive data — checking local databases, shared preferences, keychain usage, cache files, and backup configurations for information leakage.

Backend API Testing

We test the APIs your mobile app communicates with for authentication flaws, authorisation bypasses, and injection vulnerabilities — the same issues that affect web APIs, often with weaker protections.

Ready to Start?

Get a Fixed-Price Mobile App Assessment

Request a free, no-obligation scoping call. We’ll review your app and provide a clear proposal.

Get in Touch

Why Echo Secure

Why Echo Secure?

Industry-certified consultants. UK approved methodologies. Fixed-price proposals with no surprises.

CREST Pathway Certified

Our assessments follow CREST methodologies, the UK gold standard for penetration testing.

Experienced Consultants

Offsec and IASME accredited testers with hands-on experience testing iOS and Android applications.

Clear Reporting

Every finding includes business impact, technical detail, and prioritised remediation steps your team can act on.

Fixed-Price Proposals

No hidden costs. We scope your engagement upfront and provide a fixed price before work begins.

Accreditations