Apple includes a Find My iPhone feature in the iPhone 5 that helps users track down a lost or stolen iPhone using the phone’s GPS and signal.
Turning on Find My iPhone won’t guarantee a safe return, but it is an easy way to add peace of mind and to wipe a phone if it does disappear.
To do this go to Settings -> iCloud -> FInd My iPhone -> On.
Once this is enabled, users can track down an iPhone using another iOS device. Once tracked, they can play a sound, enter Lost mode or erase the device. Lost mode allows a user to set a passcode, enter a phone number and send a message to the thief or good Samaritan.
