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Turing Tests to Stop Spam

Posted by CowboyNeal on from the human-authentication dept.

cexy writes "The Register has a story about how Hotmail and Yahoo! are using Carnegie Mellon developed captcha technology (completely automated public Turing tests to tell computers and humans apart) to stop spammers from automating signups for accounts from which they can send spam. These guys are using captcha too, but to stop incoming spam."

1 of 279 comments (clear)

  1. Re:Hasn't this been around a while? by SoCalChris · · Score: 2, Redundant

    Go to http://slashdot.org/users.pl?op=newuserform to see this in action here at Slashdot.