Is it Facebook's fault that you're still using IE6 at work?
Microsoft thinks you should upgrade your browser, too. The same security guy implied that keeping IE6 just to block Facebook is a total cop out when you could just talk to your employees about acceptable uses of company time, and then upgrade them to the faster, more secure IE8. I'll go ahead and say what Microsoft can't: this IE6 policy is asinine. I don't know who these companies are, but I feel terrible for anyone who has to work for them.