Hackers are exploiting a vulnerability in software embedded in the SIM cards of hundreds of millions of phones to track users’ whereabouts—a novel form of spyware targeting one of the most important ...

SIM Card Flaw Poses Spying Threat, But US Users Appear to Be Safe A security firm has disclosed a disturbing vulnerability in SIM cards that can be exploited to track a phone's location. But an ...

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 ...