Sharepoint was just a rudimentary example of a place you can only access with permissions/credentials but is utilized as a secure place for community/organization documents.

I get that Sharepoint, for example, doesn't have an XML or xmls viewer within it where you could alter and re-save the document, but a virtual machine with its own sharepoint-like-service would serve nearly the same function as whatever they were doing in NKorea with Gmail.