I've worked a bit with a such system, from interpreting it at the policy level and down to creating a technical POC at one time. My conclusion and I think ever

I've worked a bit with a such system, from interpreting it at the policy level and down to creating a technical POC at one time. My conclusion and I think everyone elses too at that project was that despite the fact that Microsofts offering (Azure Information Protection, but not the the Sharepoint part of it) was almost brilliant it only solves involuntary leaks: - people forgetting to lock their machines, - forgetting that something is internal - etc If someone wants to leak information they can always take a photo of it. As someone who has had colleagues send screenshots of sensistive details, taking the effort to reply on BCC-ed mails and more and who has also managed to do a few things of my own I welcome this.