At 11:34 AM 12/3/2002 -0800, you wrote:
The technology to identify transmitters from the "keying" characteristics of the transmitter was commercially made available by Corsair Communications http://www.corsair.com/ (now merged with Lightbridge) using PhonePrint technology licensed from TRW's Avionics & Surveillance Group. They claim it was successful in preventing over 250 million fraudulent cloned handset call. It appears PhonePrint is no longer being actively marketed by Lightbridge.At 12:54 PM 12/3/02 -0500, Sunder wrote: >To fix this, change your MAC address (or whatever WiFi uses for that), >randomly every time you move around, and don't share things that can >identify your machine. i.e don't run things such as SMTP, FTP, Microsoft >File sharing which give away your host name, and don't accept cookies from >web sites that can track you, and make sure your browser doesn't leak your >email address, and be aware that anything you do can be sniffed.Hope that identifying 802.11 transmitters from their analog artifactual properties [1] is more difficult than identifying a Morse Coder's fist.
steve
