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Google Authenticator is a software-based authenticator by Google.It implements multi-factor authentication services using the time-based one-time password (TOTP; specified in RFC 6238) and HMAC-based one-time password (HOTP; specified in RFC 4226), for authenticating users of software applications.
After entering your password, you'll need to enter the code generated by your authenticator app to sign in. How do I get an authenticator app? Download an authenticator app from the Google Play Store or App Store. Popular authenticator apps include Google Authenticator, Microsoft Authenticator, LastPass Authenticator, and Authy.
A security key is a physical device that gets uniquely associated with your AOL account after you enable it. Each time you sign in with your password, you'll be prompted to approve access to your account using your key. This prevents anyone who doesn't have your security key device from gaining access to your account.
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.
Hardware authentication security keys. 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.
If there's something unusual about your sign in or recent activity, we'll ask you to go through another verification step after you've entered the correct password. This is an important security feature that helps to protect your account from unauthorized access.
Sites like 1password.com or lastpass.com are perfect for storing tens or hundreds of passwords while only needing to remember the site’s master password. Google has its own system if you ...
Click "Enable", and log in with your username and password. Click the + button at the top-left of Authenticator. Add the secret 2FA key to Authenticator using either one of these methods: Use Authenticator to take a screenshot of the QR code: Click the QR code button at the top-right of Authenticator.