Disabling "Log on to" detection of usernames.

Disabling "Log on to" detection of usernames.

Hi,

Is there a way to prevent ManageEngine from detecting the domain or Local Authentication when a valid username is typed in?
Our Servicedesk site is accessible publicly & while SSL encryption has been enforced for the login page, we also want to prevent hackers from probing the usernames in our domain via this method.


Regards,
Winston