A researcher has discovered major flaws in some SIM cards that could pave the way for more targeted attacks against mobile device users. Famed encryption researcher Karsten Nohl of Security Research ...

Removing a SIM card from your phone can sometimes seem like a daunting task, but it is a relatively straightforward process that can be necessary for various reasons, such as switching carriers, ...

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...