It is strange that they do not even mention the use of a more secure OS
(Linux or some kind of Unix) as an option.
This is very similar to the case of Romanian ISPs, which are running Linux
(www.romtelecom.ro and www.rdsnet.ro) and www.upc.ro, which is also running
Solaris.
It is also similar to the computer vendors in Romania, to whom Linux is
non-existing but they run Linux on their servers.