Common questions about Page Settings   
Why and When would I want to "Protect" a page?
Summary: Checking the box protects the page. Anyone who attempts to "view" the page will need a username & password. You might want to use this for board meeting notes or agendas for example, that only specific viewers have access to, and are not intended to be available to the public. *Checking this box requires the administrator to set up user level access for individual "Page Members" or common access information for groups of users.