I don't
think it's fair for you to make this claim. There are millions
of known Windows, Mac and UNIX internet-facing computers that are
under attack every day. There are significantly fewer VAXen (100 times
fewer? 1000? 10000 wouldn't surprise me), which are attacked
significantly less frequently.
The majority of production VMS machines today are Alphas, not VAXen.
Do your homework before YOU start making grandiose claims.
I've been seeing them mixed together with Itanium-based VMS machines too.
Peace... Sridhar