Pronounced "im-zee catcher," it logs the phone's International Mobile Subscriber Identity number (IMSI) and functions like a man-in-the-middle attack, relaying voice, text and data traffic between ...

Over the past decade, Serbia has imported more than 20 IMSI catchers, capable of indiscriminately harvesting communications from all mobile phones within a certain area. Experts say their use is ...

It added that such devices pose a "growing risk". Stingrays, a brand name for a type of International Mobile Subscriber Identity catcher (IMSI), are mobile phone surveillance devices that mimic ...