What is CAPTCHA?

The term "CAPTCHA" which stands for “Completely Automated Public Turing test to tell Computers and Humans Apart was created in 2000 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper of Carnegie Mellon University.
 
CAPTCHA code was created to stop automated computer spam robots from filling out forms, harvesting email addresses, and then sending out countless spam emails.


The CAPTCHA security image works by asking the website visitor to type in a code they see correctly.

A human can do this, but an automated computer program cannot.

This is why just about all the big, well known websites are using them, like MSN, Yahoo, Google, Craigslist, and countless others.


Now, you have the opportunity to use the same anti-spam web form security
method as "The Big Sites" use to stop spam completely.


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