Switching carriers or using a different SIM card on your iPhone doesn’t have to be complicated. If your device is SIM-locked, it can prevent you from connecting ...

These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another.

While Pixel 10 eSIM capabilities promise easier international travel, uneven carrier support means users must be prepared for ...

A team of security researchers has detailed a second SMS-based attack that can allow malicious actors to track users' devices by abusing little-known apps that are running on SIM cards. This new ...

The SIM Toolkit is an application built into your device that enables some of the functions of your SIM card. It serves more as driver software for the functions of your SIM card.

Cybercriminals are targeting mobile users through SIM swap fraud. They trick operators to transfer numbers. This gives them access to sensitive accounts. Users should strengthen account security.

SIM-based spyware attacks can target phones with invisible SMS messages. And all brands are vulnerable—including Androids and iPhones.