It's still a game of guesswork. Generally if you fail the CAPTCHA you will be of... | Hacker News

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		elliottcarlson on Nov 10, 2010 \| parent \| context \| favorite \| on: Using WolframAlpha to Hack Text CAPTCHA It's still a game of guesswork. Generally if you fail the CAPTCHA you will be offered a new one; and any good system should lock you out after a certain amount of failures.

jerf on Nov 11, 2010 [–]

Assume spammers are using botnets. The problem of locking them out is as hard as detecting them in the first place.

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