Information in Windows SharePoint Services is secured at one of four levels.
List or document library level
List item level
By default, all lists inherit the permissions of the site that contains them. All folders inherit the permissions of the list that contains them. All list items inherit the permissions of the folder that contains them. You can delve deeper into list, folder, and list item security in Chapter 4.
The default option, Use Same Permissions As Parent Site, checks the parent site’s permission every time the user visits the child site. The Use Unique Permissions option initially provides the site’s creator with sole access to the new site as its owner. When creating a new site, ...