Use Android Device Manager to remotely locate and factory reset your phone if lost or stolen. Android Device manager is part of Google Settings
For more information please visit https://www.google.com/android/devicemanager
From the home scree, tap Apps > Google Settings
Tap Android Device Manager.
Checkmark Remotly locate this device to access your device's location. When enabled you can locate your phone on a map using the web interface and set off your ringer to help find your phone.
Checkmark Allow remote lock and factory reset to remotly lock or delete all information from your device remotley.
Note: You will be promted to activate Android Device Manager, tap Activate to continue.