AT&T today said that customers can activate Wireless Account Lock, a new feature that will prevent unauthorized changes to a wireless

AT&T is launching a new Account Lock feature that’s designed to protect wireless users against SIM swapping attacks. The feature, which you can enable from the myAT&T app, prevents unauthorized changes to your account, like phone number transfers, SIM card changes, and updates to billing information.

Primary and secondary account holders can now block specific transactions and account changes across all devices and lines on their account.