Quote from: vlad1m1r on June 23, 2012, 08:09 amSurely though if the SIM was obtained anonymously using cash and replaced regularly the best LEO could hope for is a rough idea as to the nearest mobile phone antenna? Would this really be less secure than using your home connection where it would be obvious to any fool with access to your ISP's records that you're using Tor?V.Hi V,Thing is, is that it is not a rough idea, it's possible to geolocate a wifi device within 3 meters, and that experiment was done in 2005 so I assume all LE city based divisions have the correct technology in 2012. See Sam Bartels's whitepaper on "WIFI Location System Investigation".