CAPTCHA: Difference between revisions

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}} '''Completely Automated Public Turing test to tell Computers and Humans Apart''' or [[wikipedia:CAPTCHA|CAPTCHA]] was invented in 2000 as a means to deter [[wikipedia:Internet_bot|bots]] and [[wikipedia:Spamming|spam]] on publicly available websites.<ref name=":0">{{Cite web |last=Burling |first=Stacey |date=15 Jun 2012 |title=CAPTCHA: The story behind those squiggly computer letters |url=https://phys.org/news/2012-06-captcha-story-squiggly-letters.html |url-status=usurped |archive-url=https://web.archive.org/web/20120617130133/https://m.phys.org/news/2012-06-captcha-story-squiggly-letters.html |archive-date=17 Jun 2012 |website=Phys.org}}</ref> CAPTCHA tests aim to confirm that the visitor of a website or service is human, usually by presenting a challenge which humans can solve easily, but computer programs cannot. Primary CAPTCHAs used today are [[Google]]'s [[reCAPTCHA]] and hCaptcha.

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'''Completely Automated Public Turing test to tell Computers and Humans Apart''' or [[wikipedia:CAPTCHA|CAPTCHA]] was invented in 2000 as a means to deter [[wikipedia:Internet_bot|bots]] and [[wikipedia:Spamming|spam]] on publicly available websites.<ref name=":0">{{Cite web |last=Burling |first=Stacey |date=15 Jun 2012 |title=CAPTCHA: The story behind those squiggly computer letters |url=https://phys.org/news/2012-06-captcha-story-squiggly-letters.html |url-status=usurped |archive-url=https://web.archive.org/web/20120617130133/https://m.phys.org/news/2012-06-captcha-story-squiggly-letters.html |archive-date=17 Jun 2012 |website=Phys.org}}</ref> CAPTCHA tests aim to confirm that the visitor of a website or service is human, usually by presenting a challenge which humans can solve easily, but computer programs cannot. Primary CAPTCHAs used today are [[Google]]'s [[reCAPTCHA]] and hCaptcha.

==Consumer impact==

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-}} '''Completely Automated Public Turing test to tell Computers and Humans Apart''' or [[wikipedia:CAPTCHA|CAPTCHA]] was invented in 2000 as a means to deter [[wikipedia:Internet_bot|bots]] and [[wikipedia:Spamming|spam]] on publicly available websites.<ref name=":0">{{Cite web |last=Burling |first=Stacey |date=15 Jun 2012 |title=CAPTCHA: The story behind those squiggly computer letters |url=https://phys.org/news/2012-06-captcha-story-squiggly-letters.html |url-status=usurped |archive-url=https://web.archive.org/web/20120617130133/https://m.phys.org/news/2012-06-captcha-story-squiggly-letters.html |archive-date=17 Jun 2012 |website=Phys.org}}</ref> CAPTCHA tests aim to confirm that the visitor of a website or service is human, usually by presenting a challenge which humans can solve easily, but computer programs cannot. Primary CAPTCHAs used today are [[Google]]'s [[reCAPTCHA]] and hCaptcha.
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+'''Completely Automated Public Turing test to tell Computers and Humans Apart''' or [[wikipedia:CAPTCHA|CAPTCHA]] was invented in 2000 as a means to deter [[wikipedia:Internet_bot|bots]] and [[wikipedia:Spamming|spam]] on publicly available websites.<ref name=":0">{{Cite web |last=Burling |first=Stacey |date=15 Jun 2012 |title=CAPTCHA: The story behind those squiggly computer letters |url=https://phys.org/news/2012-06-captcha-story-squiggly-letters.html |url-status=usurped |archive-url=https://web.archive.org/web/20120617130133/https://m.phys.org/news/2012-06-captcha-story-squiggly-letters.html |archive-date=17 Jun 2012 |website=Phys.org}}</ref> CAPTCHA tests aim to confirm that the visitor of a website or service is human, usually by presenting a challenge which humans can solve easily, but computer programs cannot. Primary CAPTCHAs used today are [[Google]]'s [[reCAPTCHA]] and hCaptcha.
 ==Consumer impact==