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  2. reCAPTCHA - Wikipedia

    en.wikipedia.org/wiki/ReCAPTCHA

    In 2013, reCAPTCHA began implementing behavioral analysis of the browser's interactions to predict whether the user was a human or a bot. The following year, Google began to deploy a new reCAPTCHA API, featuring the "no CAPTCHA reCAPTCHA"—where users deemed to be of low risk only need to click a single checkbox to verify their identity. A ...

  3. 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.

  4. 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).

  5. Wikipedia:User access levels - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:User_access_levels

    Users who meet these requirements are considered part of the pseudo-group autoconfirmed. The conditions for autoconfirmed status are checked every time a user attempts to perform a restricted action; if they are met, permission is granted automatically by the MediaWiki software.

  6. Challenge–response authentication - Wikipedia

    en.wikipedia.org/wiki/Challenge–response...

    This makes it more difficult for an intruder to get the passwords, since the password itself is not stored, and it is very difficult to determine a password that matches a given hash. However, this presents a problem for many (but not all) challenge-response algorithms, which require both the client and the server to have a shared secret.

  7. Wikipedia : Request an account/Guide

    en.wikipedia.org/wiki/Wikipedia:Request_an...

    In case you do not get a satisfactory response, and do not know which course to undertake, it is better to defer the request to other users rather than to undertake a wrong course of action. If you ask for help, you will need to provide (to non-admin users) the link shown on the 'zoom' page to the other user to allow them to see the private data.

  8. Reliance authentication - Wikipedia

    en.wikipedia.org/wiki/Reliance_authentication

    Reliance authentication uses multi-step inputs to ensure that the user is not a fraud. Some examples include: When using a credit card, swiping a magnetic stripe or inserting a chip followed by a signature (in some cases, the last four digits of the payment card number is taken). [1] Answering a CAPTCHA question to prove you are not a robot.

  9. Talk:ReCAPTCHA/Archive 1 - Wikipedia

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

    If there is a software exists which defeats reCaptcha, we should not hide that fact. Lets discuss here first. —Preceding unsigned comment added by Deepbluepanther (talk • contribs) 13:14, 23 November 2009 (UTC) I searched Google with the key "reCaptcha Solver" and got the site www.rajtuhin.com in results in first page. Why some editors are ...