Private Departments let you create isolated content spaces within your organization. Unlike standard departments where admins and owners can see all content, private departments restrict visibility to only the members you explicitly add.
Standard DepartmentsAdmins and owners can see all content. Visible in department lists to everyone. Content appears in search for admins.
Private DepartmentsOnly explicitly added members can see content. Hidden from non-members entirely. Content excluded from search for non-members.