I came across this article on Wired.com which I really could not stop reading once I started... About a geek who saved the internet. ;)
Very sensational and spectacular article (I know, it was already posted months ago on other websites, but for all people who had not yet seen it, here's the link)
http://www.wired.com/techbiz/people/magazine/16-12/ff_kaminsky?currentPage=all