Security Articles

Android Secure Surfaces: FLAG_SECURE, SurfaceFlinger, and DRM

A practical deep dive into Android content protection, covering FLAG_SECURE, SurfaceFlinger protected overlays, Widevine DRM, and Compose pitfalls.

APK Decompilation and Recompilation: From Basics to Practical Workflows

A practical guide to Android APK decompilation, modification, recompilation, AAR dependency integration, and APK signing with apktool and related tools.

Android App Security Hardening: Attack and Defense in Practice

A practical guide to Android app hardening, covering reverse engineering, code protection, RASP, network security, secure storage, and security coding practices.