YubiOn Portal realizes two-factor authentication using “YubiKey” in addition to ID/Password.
In order for members of your organization to use two-factor authentication using a YubiKey, you must first assign a YubiKey.
Set up a YubiKey for a member from the admin screen.
When the assignment is complete, the assigned YubiKey will be displayed in the YubiKey list.
Next, go to the Client Tool Setup.