See also: http://events.ccc.de/congress/2009/Fahrplan/events/3654.en.html http://events.ccc.de/congress/2009/Fahrplan/events/3654.en.h... http://hackermedley.o

See also: http://events.ccc.de/congress/2009/Fahrplan/events/3654.en.html http://events.ccc.de/congress/2009/Fahrplan/events/3654.en.h... http://hackermedley.org/archives/4 http://hackermedley.org/archives/4 http://www.h-online.com/open/news/item/26C3-GSM-hacking-made-easy-893245.html http://www.h-online.com/open/news/item/26C3-GSM-hacking-made... and http://events.ccc.de/congress/2008/Fahrplan/events/2997.en.html http://events.ccc.de/congress/2008/Fahrplan/events/2997.en.h... for similar and more advanced attacks on GSM.