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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.

  3. Universal 2nd Factor - Wikipedia

    en.wikipedia.org/wiki/Universal_2nd_Factor

    Universal 2nd Factor (U2F) is an open standard that strengthens and simplifies two-factor authentication (2FA) using specialized Universal Serial Bus (USB) or near-field communication (NFC) devices based on similar security technology found in smart cards.

  4. 2-Step Verification with a Security Key - AOL Help

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

    A FIDO Universal 2nd Factor (U2F) compatible security key that can plug into the USB or lightning port for your device or connect wirelessly using Bluetooth or NFC. Order a compatible security key from a retailer you trust.

  5. Electronic authentication - Wikipedia

    en.wikipedia.org/wiki/Electronic_authentication

    Digital identity authentication refers to the combined use of device, behavior, location and other data, including email address, account and credit card information, to authenticate online users in real time. For example, recent work have explored how to exploit browser fingerprinting as part of a multi-factor authentication scheme. [13]

  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. Single sign-on - Wikipedia

    en.wikipedia.org/wiki/Single_sign-on

    A mobile device is "something you have", as opposed to a password which is "something you know", or biometrics (fingerprint, retinal scan, facial recognition, etc.) which is "something you are". Security experts recommend using at least two out of these three factors (multi-factor authentication) for best protection.

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

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

    -Yeah. 2-factor authentication is kind of an extra layer of security. Now, the reason why we bring it up is because the colonial pipeline attack was actually partly responsible, or part of the ...

  9. Mutual authentication - Wikipedia

    en.wikipedia.org/wiki/Mutual_authentication

    Mutual authentication or two-way authentication (not to be confused with two-factor authentication) refers to two parties authenticating each other at the same time in an authentication protocol. It is a default mode of authentication in some protocols ( IKE , SSH ) and optional in others ( TLS ).