What is CAPTCHA?

What is CAPTCHA and what does it do?

This question was answered on February 18, 2004. Much of the information contained herein may have changed since posting.

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CAPTCHA stands for Completely Automated Public Turing test to tell computers and humans apart, a technique used by a computer to tell if it is interacting with a human or another computer

About the author

Posted by Student of Katharine Gibbs School - New York on February 18, 2004

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