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  2. 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.

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

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

    If you've just passed an image challenge, but are immediately prompted by another, there may be an issue with your browser. Before you attempt another image challenge, clear the cache on your web browser. If you're still prompted to retake the image challenge multiple times a day, you might have a more serious issue.

  4. Huh? We Never Would Have Guessed What 'CAPTCHA' Actually ...

    www.aol.com/huh-never-guessed-captcha-actually...

    For premium support please call: 800-290-4726 more ways to reach us

  5. 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.

  6. Add or disable 2-step verification for extra security - AOL Help

    help.aol.com/articles/2-step-verification...

    Add an extra security step to sign into your account with 2-step verification. Find out how to turn on 2-step verification and receive a verification code, and how to turn off 2-step verification if you need to. Use 2-step with phone verification

  7. Luis von Ahn - Wikipedia

    en.wikipedia.org/wiki/Luis_von_Ahn

    In reCAPTCHA, the images of words displayed to the user come directly from old books that are being digitized; they are words that optical character recognition could not identify and are sent to people throughout the web to be identified. ReCAPTCHA is currently in use by over 100,000 web sites and is transcribing over 40 million words per day ...

  8. Recognize a hacked AOL Mail account

    help.aol.com/articles/recognize-a-hacked-aol...

    • Your Address Book contacts have been erased or there are new contacts you didn't add. Review your AOL Mail settings. Hackers may change the settings in your AOL Mail account to disrupt your inbox or get copies of your emails. Access your mail settings and make sure none of your info or preferences were changed without your knowledge. Things ...

  9. Sanctum Inc. - Wikipedia

    en.wikipedia.org/wiki/Sanctum_Inc.

    Sanctum was founded in 1997 as Perfecto Technologies, by Eran Reshef and Gili Raanan.. The company released its first product AppShield in summer of 1999. [3]The company has done an extensive research in application security and applying formal methods to real life software [4] in collaboration with Turing Award winner Professor Amir Penueli.