AT&T puts up website to help keep the personal information on your phone safe
To protect your information, AT&T suggests that you password protect your device as soon as you get it, and the carrier suggests that you change your voicemail and online passwords frequently. Downloading device protection and security apps can help save your phone from getting ripped off. AT&T suggests that you backup.
If your phone is stolen, AT&T says you should call your carrier and suspend wireless service immediately to prevent unauthorized use. AT&T customers who do this will have their phone noted as being lost or stolen. Suspending your AT&T account or reinstating service requires you to log onto to your myAT&T account (if you don't have one, it would behoove you to open one).
The FCC is teaming up with the nation's top carriers to develop a database of stolen devices. In about six months, if your phone is lost or stolen, you will be able to call your carrier to have it locked down completely. The aforementioned database should be completed in 18 months and will be based on each phone's unique International Mobile Equipment Identities (IMEI) number.
If you don't mind us throwing in our 2 cents, to lower the chance of getting robbed of your mobile device, you should always be aware of your surroundings and don't wave around your phone or tablet if it is not being used. Police officials in New York City have compared walking around the subway with an iPhone or iPad to be the equivalent of flashing a lot of money.
source: AT&T via PCMag