Breaking CAPTCHA

> Various techniques have been tried in the past to circumvent
> CAPTCHAs, with the most successful ones using humans. 

I was surprised to see that the article did not explicitly link to
the AI approaches to breaking CAPTCHAs which are listed at the end of
http://www.captcha.net/. Some of these papers are quite old and date
back to the time when CAPTCHAs first started appearing on the 'net
about 5 years ago.

It may just be that computers have become faster over the past five
years *and* the programs have had time to gather enough data to enable
the above approaches to increase their success rate.

Kapil.
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