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 ...

GSM phones can be "locked", that is made to accept only SIM cards belonging to a specific network. Typically, this is done so that phones will work only on the network of the carrier. SIM-locked ...

Primary and secondary account holders can now block specific transactions and account changes across all devices and lines on their account. AT&T is adding an extra layer of protection to prevent ...

SIM swapping is a popular type of fraud in which someone transfers your mobile number to a SIM in their own device. By intercepting any messages or phone calls sent to you, they're able to access your ...

The carrier’s new Account Lock feature will prevent unauthorized changes to your account, including phone number and SIM card transfers. The carrier’s new Account Lock feature will prevent ...

Google Fi Wireless has a new Number Lock feature that provides an “additional layer of protection against illegal SIM swaps.” “SIM swapping happens when someone is able to steal your phone number by ...

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 ...