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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
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Fast Facts
- CAPTCHA is widely used to differentiate between humans and bots onlineOfficial Site: CAPTCHA
- CAPTCHA stands for "Completely Automated Turing Test To Tell Computers and Humans Apart"Official Site: CAPTCHA
- CAPTCHA was developed for use by Yahoo!Official Site: CAPTCHA
- Developed by Luis von Ahn, Manuel Blum, Nicholas Hopper, John Langford of Carnegie Mellon UniversityOfficial Site: CAPTCHA
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Managed Since: 10/02/2009
Views: 2
Money Earned: M$0.02
Page revenue is subject to change as we obtain data from our partners
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Official Site: CAPTCHA
captcha.net -
CAPTCHA Creator: How To create CAPTCHA Code
captchacreator.com -
CAPTCHA.biz: How to use CAPTCHA
captcha.biz -
Luis von Ahn: Creator of CAPTCHA
cs.cmu.edu -
Official Site: ReCAPTCHA
recaptcha.net -
Wikipedia: CAPTCHA
en.wikipedia.org -
ReCAPTCHA FAQ
recaptcha.net
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Official Site: CAPTCHA
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CAPTCHA on Twitter Powered by Twitter
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Really? Oops! RT @steveofmaine Oh no, @fredshead using inaccessible CAPTCHA on mail blog post form? No audio. :(
@arm4r | November 10, 2009 11:55 PM -
Ok, if your captcha is so complicated, it take three tries, I would rethink the strategy.
@davidbryan | November 10, 2009 11:41 PM -
How To: Prevent Form Spam without Using CAPTCHA - http://su.pr/1H2CGo
@bloggingdev | November 10, 2009 11:41 PM
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CAPTCHA on Amazon | View All
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Human Interactive Proofs: Second International Workshop, HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings (Lecture Notes in Computer Science / Security and Cryptology) - $58.00
This book constitutes the refereed proceedings of the Second International Workshop on Human Interactive Proofs, HIP 2005, held in Bethlehem, PA, USA in May 2005. The 9 revised full papers presented were carefully reviewed and selec...
Amazon -
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Human Interactive Proofs: Second International Workshop, HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings - $58.00
This book constitutes the refereed proceedings of the Second International Workshop on Human Interactive Proofs, HIP 2005, held in Bethlehem, PA, USA in May 2005. The 9 revised full papers presented were carefully reviewed and selec...
Amazon
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Questions and Answers About CAPTCHA | View All | Ask a Question
View All CAPTCHA Questions (5) | Ask a QuestionWho know the details about CAPTCHA ENTRY/DATA ENTRY JOBS (2 Answers)My understanding is that most of this work is done in India. If you are from there then I would suggest making a local contact rather than trying to find ... read moreLegal Question - If I write and publish an article on breaking CAPTCHAs with code am I breaking any laws? (4 Answers)It is not illegal to post content about how to hack. If you look at places like EthicalHacker, they consistently post content about things like this. More importantly, your article ... read moreDo you think this article is useful for those doing research in pixel text recognition? http://www.wausita.com/captcha/ (3 Answers)Only useful when decoding color images of readable letters, black and white images with non standard lettering won't be so friendly. The Captcha technique has already moved past the programming ... read moreAnyone have recommendations on a good captcha plugin for a wordpress-powered blog? I'm trying out some, but would like your opinions! (1 Answer)I would highly recommend using the reCaptcha WordPress plugin. reCaptcha is a company that transcribes books using the results of one of the two words in their captchas. Big sites ... read more
Ask a Question about CAPTCHA 140 characters
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CAPTCHA on Twitter Powered by Twitter
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Really? Oops! RT @steveofmaine Oh no, @fredshead using inaccessible CAPTCHA on mail blog post form? No audio. :(
@arm4r | November 10, 2009 11:55 PM -
Ok, if your captcha is so complicated, it take three tries, I would rethink the strategy.
@davidbryan | November 10, 2009 11:41 PM -
How To: Prevent Form Spam without Using CAPTCHA - http://su.pr/1H2CGo
@bloggingdev | November 10, 2009 11:41 PM
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CAPTCHA on Amazon | View All
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-
Human Interactive Proofs: Second International Workshop, HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings - $58.00
This book constitutes the refereed proceedings of the Second International Workshop on Human Interactive Proofs, HIP 2005, held in Bethlehem, PA, USA in May 2005. The 9 revised full papers presented were carefully reviewed and selec...
Amazon -
Human Interactive Proofs: Second International Workshop, HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings (Lecture Notes in Computer Science / Security and Cryptology) - $58.00
This book constitutes the refereed proceedings of the Second International Workshop on Human Interactive Proofs, HIP 2005, held in Bethlehem, PA, USA in May 2005. The 9 revised full papers presented were carefully reviewed and selec...
Amazon
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CAPTCHA on Amazon | View All
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Human Interactive Proofs: Second International Workshop, HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings - $58.00
This book constitutes the refereed proceedings of the Second International Workshop on Human Interactive Proofs, HIP 2005, held in Bethlehem, PA, USA in May 2005. The 9 revised full papers presented were carefully reviewed and selec...
Amazon -
Human Interactive Proofs: Second International Workshop, HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings (Lecture Notes in Computer Science / Security and Cryptology) - $58.00
This book constitutes the refereed proceedings of the Second International Workshop on Human Interactive Proofs, HIP 2005, held in Bethlehem, PA, USA in May 2005. The 9 revised full papers presented were carefully reviewed and selec...
Amazon -
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CAPTCHA on Twitter Powered by Twitter
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Really? Oops! RT @steveofmaine Oh no, @fredshead using inaccessible CAPTCHA on mail blog post form? No audio. :(
@arm4r | November 10, 2009 11:55 PM -
Ok, if your captcha is so complicated, it take three tries, I would rethink the strategy.
@davidbryan | November 10, 2009 11:41 PM -
How To: Prevent Form Spam without Using CAPTCHA - http://su.pr/1H2CGo
@bloggingdev | November 10, 2009 11:41 PM
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