Microsoft Information Protection Sensitivity Labels – Custom User Permissions and Do Not Forward
With Microsoft Information Protection, you can apply sensitivity labels to files, emails, and containers such as SharePoint Libraries. These labels apply protection which, in the context of files and emails, really means encryption using AES-128 or 256 (key size depends on file type). The great thing about Information Protection is that you control an access control list of who is allowed to access the content and it's managed as a cloud service by Microsoft. …