Two-Factor Authentication adds a layer of security by adding a second step to the login process. WHMCS includes three Two-Factor Authentication services that you can choose.
For more information, see Two-Factor Authentication.
Enable Two-Factor Authentication
To enable Two-Factor Authentication for a WHMCS installation:
1. In the WHMCS Admin Area, go to Configuration > System Settings > Two-Factor Authentication or, prior to WHMCS 8.0, Setup > Staff Management > Two-Factor Authentication.
2. Click Activate for the desired service.
3. Select whether to enable Two-Factor Authentication for clients and for admins:
DuoSecurity and YubiKey require additional configuration. For more information, see DuoSecurity.
5. Click Save.
Repeat these steps for each service that you would like to enable.
