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CAPTCHA: Telling Humans and Computers Apart Automatically. A CAPTCHA is a program that protects websites against bots by generating and grading tests that ...
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captcha from en.m.wikipedia.org
A CAPTCHA is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam. This CAPTCHA ...
CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a type of security measure known as challenge-response ...
captcha from www.google.com
A seamless fraud detection service that stops bots and other automated attacks while approving valid users. Adaptive. reCAPTCHA's risk-based bot algorithms ...
captcha from www.cloudflare.com
CAPTCHA is an acronym that stands for "Completely Automated Public Turing test to tell Computers and Humans Apart." Users often encounter CAPTCHA and reCAPTCHA ...
captcha from www.imperva.com
CAPTCHA stands for the Completely Automated Public Turing test to tell Computers and Humans Apart. CAPTCHAs are tools you can use to differentiate between real ...
CAPTCHA stands for "completely automated public Turing test* to tell computers and humans apart." It refers to various authentication methods that validate ...
captcha from www.humansecurity.com
CAPTCHA is an acronym that stands for Completely Automated Public Turing test to tell Computers and Humans Apart. It is a type of challenge–response test ...
captcha from support.google.com
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse. A “CAPTCHA” is a turing test to tell human and bots apart.