Eugen Leitl said: > On Sun, 23 Mar 2003, Justin Mason wrote: > > > Are those GSM phones? > > There are realtime cypher-breakers for GSM now, but if you 0wn > the base stations you can just switch off encryption, and your mobile > won't raise a ruckus. That's a time-honoured crypto bad-UI exploit ;) The bit I was wondering about, though, was triangulation of position "using satellites". Is that possible with GSM? --j.