Slashdot Mirror

← Back to Stories (view on slashdot.org)

Baffling the Spam Bots

Posted by michael on from the change-addresses-every-six-weeks dept.

dumpster_dave writes "Scientific American is running an article, Baffling the Bots on techniques to outsmart and subvert spam bots and their chat-room cousins via CAPTCHA. You have probable seen this in the form of images containing text as gate-keepers to various on-line services. The latest evolution is using non-words and distorting the text such that even the best AI systems cannot decipher them, yet humans can not help but do so [cf., Gestalt Psychology]."

1 of 350 comments (clear)

  1. Re:A better way to do this... by Rosco+P.+Coltrane · · Score: 5, Funny

    I have a better idea : present a complex differential equation and ask the person to solve it in less than 10s. If he fails, he's human.

    --
    "A door is what a dog is perpetually on the wrong side of" - Ogden Nash