Restricted
Component type
Categories
Component created
Component changed
Mark content as restricted so a permission is needed to view it.
Each content type has a permission to view restricted nodes of that type. There is also a global View all restricted content permission.
Each content type may be set to always or never restricted, restricted by default, or not restricted by default. The first two options just apply globally. The second two create a checkbox on each node form, but control its default value differently.