Defeating Captchas
... but some implementation of Captcha can be readily defeated. Coding Horror showed a chart from a Chinese site of several catpchas types and their difficulty to defeat. The chart shows that some captchas are very diificult to with OCR techniques. Good discussion on defeating captchas at Schneier on Security . Some of the comments have good links for more information. One of the links is for...
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captchas
security
Posts by jabolins tagged captchas
http://jabolins.livejournal.com/4164.html (Cached)
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Published: 1 year, 7 months ago (Mon, 10 Dec 2007 17:50:06 PST); 1155 bytes |