Are industrial control and SCADA (Supervisory Control and Data Acquisition) systems the new frontier, not just for cyber-crime but also for cyberwar? Until recently, when you were at war with a country, you sent in your bombers. First they hit the military targets. Once they had finished those off, they would hit infrastructure, with attacks designed to destroy industry and demoralize the civilian population.

Electricity production, oil and gas, even water and waste services would all be targeted. However, nowadays, you don't need brute force to turn the lights off. This was recently demonstrated by hackers attacking The Ukraine, who succeeded in knocking out power supplies to up to 1.4 million residents through the social engineering attack known as spear phishing. An infected Word document was used to introduce BlackEnergy malware into critical systems.