Two-Factor Authentication

Four methods are available:

  Token generator

a time based one-time password token generated by a client like Google Authenticator or FreeOTP.

  Phone call

a phone call is made to the given number and a computer generated voice spells a token to enter.

  Text message

a SMS with a token is sent to the given number.


use a YubiKey to generate a token.

To enable two-factor authentication, open the user menu on the right upper corner and click on Two Factor Authentication.

Click on Enable Two-Factor Authentication and follow the steps of the setup wizard.

Phone number should start with the character + followed with the international code, followed by your number without the leading zero. It shouldn’t contains any spaces.

Backup Methods

In case you don’t have any device with you, two backup methods are available: backup phone numbers and backup tokens.

The backup phone numbers works by calling a phone or sending a SMS on a different phone number than the one you entered for the normal method.

The backup tokens are tokens that you need to keep securely with you. Each token can only be used once. Each time you re-generate them, the previous tokens are invalidated.

Disable Two-factor Authentication

You can disable the two-factor authentication by clicking the Disable Two-Factor Authentication button.