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2. YubiKey - Wikipedia

   en.wikipedia.org/wiki/YubiKey

   First YubiKey USB token of the FIDO standard in 2014. The YubiKey is a hardware authentication device manufactured by Yubico to protect access to computers, networks, and online services that supports one-time passwords (OTP), public-key cryptography, authentication, and the Universal 2nd Factor (U2F) and FIDO2 protocols [1] developed by the FIDO Alliance.

3. 2-Step Verification with a Security Key - AOL Help

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

   Sign in and go to the AOL Account security page.; Under "2-Step Verification," click Turn on.; Click Security Key.; Follow the onscreen steps to add your Security Key. Add additional recovery methods in case your Security Key is lost.

4. 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.

5. 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.

6. Comparison of OTP applications - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_OTP_applications

   The following is a general comparison of OTP applications that are used to generate one-time passwords for two-factor authentication (2FA) systems using the time-based one-time password (TOTP) or the HMAC-based one-time password (HOTP) algorithms.

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

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

   Yahoo Finance's Dan Howley discusses what is two-factor authentication and how to use it. Video Transcript - Also in this week's tech report, you're talking about how to set up 2-factor authorization.

8. What's a six-digit verification code — and why you should ...

   www.aol.com/whats-six-digit-verification-code...

   Six-digit verification codes are a form of two-factor authentication, a process that helps keep your important online accounts secure. For example, you might get a text message or email with a six ...

9. Your phone got hacked and now someone's got control of it ...

   www.aol.com/phone-got-hacked-now-someones...

   Ensure that two-factor authentication is also enabled for your Apple ID. Open Settings > Tap your name at the top > Select 'Sign-In & Security' > Tap 'Turn On Two-Factor Authentication' > Follow ...