Requiring Two-Factor Authentication for Clients or Admins
After a two factor authentication service has been activated, clients or admins can be forced to set up two-factor authentication before being allowed access to the Client Area or Admin Area:
1. Log in to your WHMCS Admin Area.
2. Go to Configuration > System Settings > Two-Factor Authentication.
3. Scroll to the Global Two-Factor Authentication Settings section.
4. Check the desired options.
5. Click Save Changes.
When a client or admin logs in, they will be required to set up two-factor authentication.