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  2. Multi-factor authentication - Wikipedia

    en.wikipedia.org/wiki/Multi-factor_authentication

    Multi-factor authentication (MFA; two-factor authentication, or 2FA, along with similar terms) is an electronic authentication method in which a user is granted access to a website or application only after successfully presenting two or more pieces of evidence (or factors) to an authentication mechanism. MFA protects personal data —which may ...

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

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

    1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Add or disable 2-step verification for extra security. 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 ...

  4. What is Two-Factor Authentication? - AOL

    www.aol.com/news/two-factor-authentication...

    Two-Factor Authentication. Quite simply, Two-Factor Authentication requires two forms of user authentication rather than a single form to allow you to access a digital system. By requiring two ...

  5. Tech support: What is two-factor authentication and how to ...

    www.aol.com/news/tech-support-two-factor...

    Now, 2-factor authentication, again, it's that second layer of security. So when you sign up for a service, you have your password, you have your username, and then sometimes you'll get a ...

  6. Help:Two-factor authentication - Wikipedia

    en.wikipedia.org/wiki/Help:Two-factor_authentication

    Go to Special:Manage Two-factor authentication. Click "Enable" next to "TOTP (one-time token)", and log in with your username and password. The recommended authentication method is to scan a QR code in the app. In "Step 2" of the setup page, there is a box with a pattern which you have to point your device's camera toward.

  7. Authentication - Wikipedia

    en.wikipedia.org/wiki/Authentication

    Authentication (from Greek: αὐθεντικός authentikos, "real, genuine", from αὐθέντης authentes, "author") is the act of proving an assertion, such as the identity of a computer system user. In contrast with identification, the act of indicating a person or thing's identity, authentication is the process of verifying that ...

  8. Authenticator - Wikipedia

    en.wikipedia.org/wiki/Authenticator

    Authenticator. An authenticator is a means used to confirm a user's identity, [1][2] that is, to perform digital authentication. A person authenticates to a computer system or application by demonstrating that he or she has possession and control of an authenticator. [3][4] In the simplest case, the authenticator is a common password.

  9. Access control - Wikipedia

    en.wikipedia.org/wiki/Access_control

    To prevent this, two-factor authentication can be used. In a two factor transaction, the presented credential and a second factor are needed for access to be granted; another factor can be a PIN, a second credential, operator intervention, or a biometric input. [5] There are three types (factors) of authenticating information: [6]

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