Every 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 call encryption several years ago -- has uncovered a flaw that allows some SIM cards to be hacked with only a text message. By cloaking an SMS so it appears to have come from a carrier, Nohl said that in around a quarter of cas
