Android Security You Should Use

You can locate your phone, have it sound off (even if muted), lock it from use, and even wipe it to make it useless.

On your Android phone find an icon labeled Google Settings. Open the app and select both Remotely locate this device and the Allow remote lock and factory reset check boxes. Touch the Activate button.

From your browser goto https://www.google.com/android/devicemanager. Log into your account and your device(s) will show up. You now have absolute control over your phone.