Per default, you only log in to the groupware with your username and password. Depending on the configuration, you can increase the security when logging in by using an additional authentication that is executed after the usual login. This procedure is generally called multi-factor authentication.
The additional authentication is done by verifying your identity with a device owned by you. You have the following options to verify your identity:
Google Authenticator
You need to install an app on your mobile device to get an auto-generated code. You need to enter this code to confirm your identity.
Yubikey, Google Security Key or compatible FIDO device
With a security key that is connected with your PC via USB or wirelessly, your identity is verified during the login.
send code via SMS
An SMS with a code is sent to your mobile device. You need to enter this code to confirm your identity.
The following options exist:
Parent topic: Data Security