You might be better of looking at how Cisco could destory the net, or at least bring it to a halt, given the way they responded to the Cisco vulnerabilities released earlier this year. As was previoulsy said, the core routers are the things that could bring down the net. Exchange could lead to a lack of email, which would no doubt have an affect (especially on corporations) but its not going to be the end of the net as we know it.

The standards issued raised by und3rtak3r are also a concern, there is a danger that MS become more like apple and lock people into their software (maybe even hardware as well) or things won`t work. Given that there are lots of IIS boxes as well this creates an even larger problem.

And wtf is a "yuppie gay Mac user"?? A statement like that doesn`t make your support of MS look to good.....Do you have any idea of some of the people who use Macs? ever been to Blackhat? Def Con? Torcon? if not then go have a look around.

Yes MS have done some good stuff, but at the same time they still produce a lot of crap, it still costs a lot of money, and it still seems to keep having security issues, even though MS tout their secure coding intiatives, although apple just released fixes for 44 security holes, so its not all MS.