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What is CAPTCHA and How is it Used?

Have you ever wondered what those crazy letters are? Or why you’re required to type them into the box? CAPTCHA: What it stands for and where it came from: The term CAPTCHA stands for Completely Automated Public Turing Test To Tell Computers and Humans Apart and was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper and John Langford...

January 19th, 2012 by Dmitry Andrejev
Posted in Security, Web Development