SharePoint online Security Reports give you the most relevant reports for your Office 365 SharePoint online Audit and compliance tracking. You can assess the security of your Sites in multiple dimensions, by analyzing effective permissions of users and groups or permissions by sites. You can determine group ownership and lists and sites with no securable objects. You can identify sites with limited access permissions.You can get specific security reports that analyze your SharePoint Site Security Access Roles and rights by users/groups and by Sites and Lists. You can get reports on One Drive for Business and how users are using their One Drives.