Cracking Stuxnet - a beginner's guide

Ralph Langner is the German control system security engineer who discovered what the Stuxnet virus was supposed to attack - i.e. the Iranian nuclear program. In a TED Talk he explains how he worked out what the virus was doing and, if you are not a control security specialist, it's quite an eye opener. The Stuxnet Windows worm was discovered in July 2010 and at first it was a mystery. It was