This comprehensive 2026 guide covers every security and privacy setting for your Android device. Set a strong lock screen and enable Secure Startup. In Play Store settings, enable Play Protect and disable unknown sources. Review app permissions critically — the average phone has 23 apps with unnecessary microphone access. Use the privacy dashboard in Android 14+ to monitor permissions. Enable Find My Device. Use encrypted DNS. For maximum security, enable Work Profile. Keep firmware updated monthly. Disable Wi-Fi calling unless needed. Consider a privacy screen protector. These 15 minutes of configuration dramatically improve your Android security posture.