Your phone's SIM card allows the device to make calls, send texts, and connect to the internet. The SIM card provides a phone number that identifies your device on the carrier's network, whether it's ...

This is not as easy as it sounds — and it’s not common advice. But there’s a new warning for iPhone and Android users to ...

AT&T today said that customers can activate Wireless Account Lock, a new feature that will prevent unauthorized changes to a wireless account. With Account Lock turned on, account changes like billing ...

AT&T is rolling out a protection that prevents unauthorized changes to mobile accounts as the carrier attempts to fight a costly form of account hijacking that occurs when a scammer swaps out the SIM ...