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  2. CAPTCHA - Wikipedia

    en.wikipedia.org/wiki/Captcha

    This CAPTCHA (reCAPTCHA v1) of "smwm" obscures its message from computer interpretation by twisting the letters and adding a slight background color gradient.A CAPTCHA (/ ˈ k æ p. tʃ ə / KAP-chə) 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.

  3. reCAPTCHA - Wikipedia

    en.wikipedia.org/wiki/ReCAPTCHA

    reCAPTCHA Inc.[ 1] is a CAPTCHA system owned by Google. It enables web hosts to distinguish between human and automated access to websites. The original version asked users to decipher hard-to-read text or match images. Version 2 also asked users to decipher text or match images if the analysis of cookies and canvas rendering suggested the page ...

  4. Fix issues with AOL Mail image challenges - AOL Help

    help.aol.com/articles/what-should-i-do-if-i-get...

    Call live aol support at. 1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Fix issues with AOL Mail image challenges. AOL Mail uses many security measures to keep your account secure, one of which is CAPTCHA or image challenges when sending mail.

  5. Turing test - Wikipedia

    en.wikipedia.org/wiki/Turing_test

    The interrogator is limited to using the responses to written questions to make the determination. [ 1] The Turing test, originally called the imitation game by Alan Turing in 1950, [ 2] is a test of a machine's ability to exhibit intelligent behaviour equivalent to, or indistinguishable from, that of a human.

  6. NuCaptcha - Wikipedia

    en.wikipedia.org/wiki/NuCaptcha

    Standard CAPTCHA techniques such as character crowding, once animated, are easier for humans to detect because of an innate motion-detecting ability. Behavior analysis. Using machine-learning algorithms, NuCaptcha monitors platform interactions to tune the security of each CAPTCHA delivered to the user.

  7. Wikipedia:Request an account - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Request_an_account

    Being unable to create an account for yourself is typically due to: Having trouble or being unable to see or complete the required CAPTCHA image verification step.; Choosing a username that is too similar to an existing username (in these cases, an account creator can approve the creation of similar usernames if certain criteria are met).

  8. Internet bot - Wikipedia

    en.wikipedia.org/wiki/Internet_bot

    Internet bot. An Internet bot, web robot, robot or simply bot (an abbreviation of robot ), [ 1] is a software application that runs automated tasks ( scripts) on the Internet, usually with the intent to imitate human activity, such as messaging, on a large scale. [ 2] An Internet bot plays the client role in a client–server model whereas the ...

  9. Talk:ReCAPTCHA/Archive 1 - Wikipedia

    en.wikipedia.org/wiki/Talk:ReCAPTCHA/Archive_1

    To use an unfortunately horrid example, but the only one I can think of with a prominent reCaptcha, 4chan.org (NSFW) has the latest captcha. You can also see form that one is a scan and the other is computer generated.