Carry your phone with you whenever possible and make sure it is in a safe place whenever you leave it behind. If you are leaving your phone in your car, be sure it is hidden from view.
Turn off your phone when you are not using it.
Request a personal identification number.
Use the "lock" feature on your phone.
Report a stolen cellular telephone immediately to the cellular telephone carrier and Police.
Check your monthly bills carefully, and report unfamiliar calls to your cellular phone company.
Do not give out your electronic serial number or even your phone number to strangers, including callers who represent themselves as technicians testing your line.
Keep your subscriber agreement, which includes your electronic serial number, in a secure location.