Cloudy attachment

Tracking Anonymous Access to SharePoint and OneDrive Documents

by Tony Redmond

Cloudy attachments are an excellent way of sharing documents through email without attaching files. Behind the scenes, an anonymous link to the document is sent to recipients, who can then use the link to open, edit, or download the document (depending on the assigned permission). Office 365 tenant administrators don't have great visibility into what kind of anonymous sharing happens, but they can with a little bit of PowerShell and the contents of the Office 365 audit log.