Ian G
Mon, 22 Oct 2007 17:20:11 -0700
Peter Gutmann wrote:
http://www.lafdc.com/captcha/ is a site that sells commercial CAPTCHA-breaking software. It also shows success rates for different types of CAPTCHAs. While the ratings are merely representative of this particular site's software and not a universal measure, it's interesting to note that there's already a commercial market for anti-CAPTCHA tools.
The other approach that I've heard of against such turing/human tests is that attackers have experimented with mechanical turk style systems.
iang http://www.mturk.com/mturk/welcome --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]