Private Forum setup

[Smitty]

A company has contacted me and asked if I would set up a special forum for them which would only be accessable to their clients. The only way I can think of to do this would be to set up a password protected forum.

Do any of you have any other ideas on how to set up a private forum with restricted access?

[SEOvB]

You could user groups and their permissions as well since PW protecting the forum wouldn't be the best idea as the PW could easily be leaked.

Setup a "Clients" usergroups, make the "Clients Forum", then deny everyone access unless they are in the "clients" usergroup.