In this case, the cyber identity of this file would be a full set of its cyber coordinates in the IP subspace: the computer IP address, its MAC address, a Portnumber associated with the particular application, and the file name would constitute the full set of cyber coordinates, singularly identifying a cyber object (our file) in cyberspace.
Most recently, the Emir of Dubai's purchase at fire-sale prices of 4.9 percent of the largest U.S. bank, Citigroup, has caused a level of unease not seen since he tried to buy his way into a large number of this country's port facilities.