"The GSM technology used by the majority of the world's mobile phones will get some scrutiny at next week's Black Hat security conference, and what the security researchers there have to say isn't pretty.
"On Friday, an open source effort to develop GSM-cracking software released software that cracks the A5/1 encryption algorithm used by some GSM networks. Called Kraken, this software uses new, very efficient, encryption cracking tables that allow it to break A5/1 encryption much faster than before.
"The software is key step toward eavesdropping on mobile phone conversations over GSM networks. Since GSM networks are the backbone of 3G, they also provide attackers with an avenue into the new generation of handsets."
