The
All Users Role is not technically a role that can be managed from the
Roles page, but it does control who can access features on a web site running on DotNetNuke.
If you apply VIEW permissions for the All Users role in a
Permissions_Grid you are saying that anyone visiting the website, logged in or not, can view whatever that permissions grid applies to.
Another virtual role is
Unauthenticated Users role, which is applied to anyone, who currently is not logged in.