a person's finger holding up a SIM card with a phone in the background - Towfiqu Ahamed/Getty Images A SIM card is a necessity for connecting your phone to a cellular network. Unfortunately, that ...

It took a long time -- more than 20 years, to be exact -- but the humble SIM card that sits within your phone, and seven billion others, has finally been hacked. Of the seven billion modern SIM cards ...

SIM swap fraud, in which a cellular service provider is duped into assigning a mobile phone number to a new SIM card is real and on the increase, according to experts. What's False SIM information ...

A SIM card is a necessity for most cell phones. (Public Domain) Even though it's one of the simplest components in a cellphone, older SIM cards are still vulnerable to attack, leaving approximately ...

Phones that take two SIM cards were a small trend at Mobile World Congress. Here's why that's a good thing. Kent was a senior managing editor at CNET News. A veteran of CNET since 2003, he reviewed ...

Physical SIM cards have long been synonymous with phone numbers. They've changed greatly from what they once used to be — giant cards you'd have to put in after removing your phone's battery – but ...

This is a common problem, especially since more and more businesses are starting to issue mobile phones to their employees. Fortunately, there are a few solutions that enable you to put two SIM cards ...

As many as one quarter of all mobile phones in use in the world today could be vulnerable to an SMS attack that allows hackers to gain full control of the phone. The vulnerability was discovered in ...

Every GSM phone needs a SIM card, and you'd think such a ubiquitous standard would be immune to any hijack attempts. Evidently not, as Karsten Nohl of Security Research Labs -- who found a hole in GSM ...

Subscriber identity module cards, more commonly known as SIM cards, store phone account information that networks use to connect calls and messages, among other types of communication. As a business ...