I just read an article in the 11 October issue of InformationWeek (informationweek.com) entitled; "The Wrong Protection" by Greg Shipley.
In a nutshell, Mr. Shipley surveys the problems we currently have with cyber attacks and the lack of protection in all operating systems.
There is too much info in this article to give it any in depth treatment here. Mr. Shipley did an excellent job of highlighting the problems.
Unfortunately, the solutions are going to be drastic, if we are to maintain any secure systems.
If it all comes unglued, what are you going to do?