system
8
I’ve read it before using the file.
I think I fall into the third group of users (highlight added by me):
A third set of requests come from exactly the people you might think would be least likely to want viruses "users of anti-virus software". [b]They want some way of checking that they have deployed their software correctly[/b], or of deliberately generating a "virus incident in order to test their corporate procedures, or of showing others in the organisation what they would see if they were hit by a virus".
I think they provide both HTTP and HTTPS links for a reason.