How to use two-factor authentication - 2FA
With two-factor authentication (2FA), mailbox offers you an improved way to reliably secure access to your mailbox. The 2FA protects your data in addition to your password. Two options are available depending on your setup: Two-factor authentication with TOTP procedure (time-based one-time password) and OTP procedure (one-time password).
Why two-factor authentication?
Two-factor authentication significantly increases the security of your mailbox. In addition to your password, you need a second factor - such as a time-based one-time code (TOTP), which is generated on a separate device. This prevents access even if your password falls into the wrong hands.
Time-based one-time password: login via TOTP
TOTP.based two-factor authentication offers an easy way to secure your account with a second factor - without any additional hardware, directly via an app on your smartphone.
Setting up TOTP
You can activate two-factor authentication via a TOTP-enabled authenticator app such as Google Authenticator, Bitwarden or FreeOTP.
To do this, open All settings... | Security | Two-factor authentication .
- assign a device name
- scan the displayed QR code with your authenticator app, e.g. Bitwarden, FreeOTP, GoogleAutheticator.
- enter the 6-digit code generated by the app.
After successful setup, both your password and the current code from the app will be required to log in.
