Today, at TechEd Europe, Microsoft made several announcements regarding the next set of innovations in security, privacy and compliance capabilities of Office 365, including mobile device management capabilities for Office 365, expansion of data loss prevention (DLP) technologies and the availability of per-file encryption in our productivity services.
Office 365 has had DLP capabilities in email for quite some time, with powerful controls to help protect sensitive information and ensure your employees operate within your IT policies. Today, we are announcing the expansion of DLP capabilities to additional Office 365 services and other Office applications so you can protect your content no matter where it is stored and shared within Office 365, whether in email, OneDrive for Business, SharePoint Online, and Windows File Server or within the file itself.
Last spring we announced our intent to include even more file encryption capabilities in our SharePoint and OneDrive for Business. Today we are excited to announce that we have rolled out advanced encryption at rest for SharePoint Online and OneDrive for Business called per-file encryption. Per-file encryption technology encrypts every individual file stored in SharePoint Online and OneDrive for Business with its own unique key, and also encrypts each subsequent update to the file with an additional unique key. This granular level of encryption vastly reduces the risk of unauthorized access to the content.
Read more about it here.