The problem with one storage solution Most React Native apps store everything in AsyncStorage. Tokens, user data, preferences, session state. All in one place, all in plain text. AsyncStorage is a key-value store backed by SQLite (iOS) or SharedPreferences (Android). It's fast and convenient. It's also completely unencrypted. Anyone with physical access to the device, or a rooted/jailbroken device, can read every value. For a theme preference, that's fine. For an access token, it's a security incident. 💡 The principle: store data at a security level that matches its sensitivity. Tokens get the strongest protection. Preferences get the fastest access. Everything else falls somewhere in between.…