A CAPTCHA is a program that protects websites from spam-generating bots by requiring humans to pass a test of reading distorted text. CAPTCHAs were developed for Yahoo! in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper and John Langford of Carnegie Mellon University.Official Site: CAPTCHA
What is a Captcha?(3 Answers)
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CAPTCHA stands for "Completely Automated Public Turing Test To Tell Computers and Humans Apart" and is a security system used by many websites to determine if a user ...
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References
Fast Facts
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Fact:
CAPTCHA is widely used to differentiate between humans and bots onlineOfficial Site: CAPTCHA
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Fact:
CAPTCHA stands for "Completely Automated Turing Test To Tell Computers and Humans Apart"Official Site: CAPTCHA
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Fact:
CAPTCHA was developed for use by Yahoo!Official Site: CAPTCHA
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Fact:
Developed by Luis von Ahn, Manuel Blum, Nicholas Hopper, John Langford of Carnegie Mellon UniversityOfficial Site: CAPTCHA
