Android Security 2025: Kotlin Guide

This article walks through 7 actionable practices you can implement today, each backed by concise Kotlin or XML snippets you can paste into your project. It targets developers migrating to API 34+ but remains relevant for older deployments.

Android App Security

Why Security Matters More Than Ever?

Android 15 (currently in preview) doubles‑down on privacy and integrity enforcement. Google Play Protect now performs real‑time code scanning on more devices, SafetyNet has been deprecated in favor of the Play Integrity API, and monthly security bulletins regularly patch critical vulnerabilities. Ignoring these shifts can leave users — and your reputation — exposed.

About the SafetyNet Attestation API deprecation | Security | Android Developers

Overview of the Play Integrity API | Google Play | Android Developers

Least Privilege

1. Request runtime permissions only when truly needed.
2. Disable component…