Comprehensive Mobile Application Security Guide

Comprehensive Mobile Application Security Guide A practitioner’s reference for iOS and Android application security — threat models, platform attack surface, reverse engineering, runtime instrumentation, bypass techniques, testing methodology, and defensive controls. Compiled from 16 research sources. Table of Contents Fundamentals & Threat Model OWASP MASVS & MASTG Android Platform Attack Surface iOS Platform Attack Surface Insecure Storage Network Communication & TLS SSL / Certificate Pinning Bypass Reverse Engineering Workflow Runtime Instrumentation with Frida Root & Jailbreak Detection Bypass Deep Links & URL Schemes WebView Security Authentication, Biometrics & Session Cryptography & Key Management Resilience / Anti-Tamper / RASP Tooling Reference Testing Methodology Notable CVEs & Real-World Incidents Defensive Checklist 1. Fundamentals & Threat Model Mobile application security differs from traditional web security in three material ways. First, the attacker has the binary on their device and can take it apart at leisure — the app runs in a fundamentally hostile environment. Second, the OS provides strong sandboxing, code signing, and hardware-backed keystores that raise the bar but can be bypassed by a motivated attacker on a rooted or jailbroken device. Third, the attack surface spans the binary, the device, the local IPC boundary, the network, and the backend APIs — any of which can be the weak link. ...

April 10, 2026 · 30 min · Carl Sampson