Macs and Linux both have games. But Windows probably has more manageable software to control that in the environment (now). So when was that 1995? Not mocking you but just wondering.
Also who cares...there are games galore online now, so if you’re really worried about that you might as well pull the internet plug from them as well. And there are games that can be played via email or IM so you better pull that too. I work with extremely large enterprises everyday. In fact, I’d say I’m responsible for one of the largest networks in the world. Windows allows us to lock down the desktop quite nicely (now).
1995 through 2002.
The firewalls block a lot of the ports used by online games these days, and there are security appliances that can (and do) sniff the contents of http streams and close the connections in the proxies if they see non-approved traffic on the corporate networks.
cisco doesn’t depends on Windows security (such as it is) to secure networks. They have a network-centric view of the world (no big surprise there), so they like to assume dumb (or in the case of Windows, idiot savant) clients. The benefit to this approach is that by securing the network, you no longer are bound to any one OS’s view or implementation of security. The security on their Unix servers is quite tight, but we have to be realistic and say that the marketing and sales people are never going to get past the login prompt on a *nix system. The doc people don’t want to use Windows, but the engineers using AutoCAD have to, other engineers doing chip simulations have to use Solaris, yet others have to use *BSD implementations on PC’s, etc, etc, etc.
For all of that, while I was there, there was no bigger headache for security that Windows. And from talking to people still there, that’s still the case - mostly because when people take their PC laptops outside the corporate net, they forget to increase their paranoia about the threats that they would not see inside the corporate net with the IDS boxes between them and the rest of the world.