Always verify APK signatures against a trusted source like a stock firmware image from your device manufacturer. Avoid random "APK mirror" sites unless they provide checksums certified by the original developer.
Around the time Android 5.1 was released, Google introduced a security feature called . Google Account Manager 5.1-1743759 -Android 5.0
: It manages your sign-in credentials, allowing you to log into apps like Gmail, Photos, and Drive with a single account. Always verify APK signatures against a trusted source