Re:Using WolframAlpha to Hack Text CAPTCHA
by moshezadka on Wednesday November 10, 2010 @08:49PM
(#1892538)
It can't work the way you explained it: I just solved your CAPTCHA with 33% success rate (waaay too high for a useful CAPTCHA). Perhaps if you ask for "the three pictures of X animal out of those 9", and you had a database with which animal has which property (and you also ran some fuzz over the images so no two images would ever be the same). I'm still skeptical...
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Re:Using WolframAlpha to Hack Text CAPTCHA
by elliottcarlson on Wednesday November 10, 2010 @10:14PM
(#1892743)
That would assume that it is multiple choice - however if it's still free form text input, requiring the input to equal "frog" would solve that issue. Text + images + logic would offer a lot more hurdles than just any single one of those.