First, turn on two-factor authentication for the account. You'll get a QR code or setup key. Next, open the Google Authenticator app and tap the plus sign. Record the 2FA code/key. Whenever you're ...
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Google Authenticator

Google Authenticator takes the hassle out of protecting your online accounts with multi-factor authentication (MFA). It's free, and if you have a Google account, setting up and transferring codes is ...
Security-minded folks should use authenticator apps instead. MFA, formerly known as 2FA (two-factor authentication), is a secondary security method born out of the decades-old security principle that ...