bittorrent

Clarifications

Most network admins are enforcing security by banning bittorent

What exactly do you mean by "enforcing security in bittorrent"?

http://bandwidthcontroller.com/applicationPorts.html

Simply setup a rule to block the appropriate TCP or UDP port for the type of traffic you're looking to block.

Well, I guess you had better shut down all access to port 80 on your machine, too. So much for web browsing.

Shutting down access to BitTorrent is not a universal path to security. You need to allow access to the networking protocols that you use, or you won't be able to perform the tasks you need to perform to make your computer useful. If you want to grab Linux and BSD Unix ISOs off BitTorrent, you need to have access to BitTorrent. By the same token, if you want to participate in discussions on TechRepublic's website, you need access to HTTP over port 80 to connect to webservers.

I mean, sure, you can just assume that blocking BitTorrent will make you more secure, just as you can assume that blocking HTTP will make you more secure. On the other hand, once you've blocked access to absolutely everything, you're left with a glorified typewriter.

"[i]By banning bittorrent you prevent openly promoting BAD SECURITY protocols.[/i]"

You seem to be suggesting that BitTorrent is somehow inherently bad. It's not.