For many years, mobile phones received cellular service through a physical SIM (subscriber identity module) card that connected your handset to your phone carrier. These physical SIM cards made it ...

After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

A SIM card, or subscriber identity module card, is essential component of any phone. It connects your device to a cellular network and stores vital information, including your phone number. Many ...

A vulnerability discovered in the SIM cards used in some smartphones could be exploited by fraudsters to steal consumers' mobile and online bank account information, according to Security Research ...

The government’s directive, aimed at curbing cybercrime, will render chat apps defunct if not always connected to the ...