Beating CAPTCHA
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Sunday, Jan 25, 2009 / 9:37pm View more articles
I just read a fascinating article on beating a CAPTCHA using a standards-complaint JavaScript neural net.
It's really neat because it (a) shows how powerful the standard web document model has become, (b) it's a fun, practical bit of CS, and (c) it may stick a fork in CAPTCHAs. They've always been hideously user-unfriendly; now they're demonstrably attackable. While this particular example is nearly trivial, the basic technique is perfectly extensible.
I think (hope, really) that we can look forward to the CAPTCHA going away.
Check back in 2010 to see if I called it. Or not.
It's really neat because it (a) shows how powerful the standard web document model has become, (b) it's a fun, practical bit of CS, and (c) it may stick a fork in CAPTCHAs. They've always been hideously user-unfriendly; now they're demonstrably attackable. While this particular example is nearly trivial, the basic technique is perfectly extensible.
I think (hope, really) that we can look forward to the CAPTCHA going away.
Check back in 2010 to see if I called it. Or not.
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