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 change the default PIN and lock SIM cards “to limit an attacker’s ability to ...

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 ...

Google Fi has implemented a Number Lock feature to fight illegal SIM swaps. This feature blocks your number from being transferred to another phone or to a new network. The FCC announced new rules to ...