CAPTCHA

Be sure you're receiving valid submissions through your secure online forms by using a special type of challenge-response test, known as a CAPTCHA, to prevent spam generated by automated computer programs. CAPTCHAs present a distorted series of characters that are easily read by humans, but cannot be deciphered by computer programs. By requiring users to accurately reenter the series of characters shown on screen before they can submit an online form, CAPTCHAs greatly reduce unwanted computer-generated responses.

 

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