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2FA? OTP? Why do I need an app for that?

One hand holding smartphone while other hand types on laptop keyboard
The authenicator app on your smartphone generates a one-time code for the 2FA login

Two-factor authentication (2FA) is about boosting your inbox security by adding a second verification step to your email login process. And this second factor is a six-digit security code that you not only use to activate two-factor authentication, but also to log in once 2FA has been set up. This security code is also called an “OTP,” and it’s generated by an app that you install on your smartphone.

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App Password Security 2FA
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