Hayden: Biggest Cyber Threat to U.S. Is Sony-Type Attacks on Private Firms

HAYDEN: "There's always a possibility of the apocalyptic attack, turning out all the lights east of the Mississippi. That's not where I focus. I can't say that's zero. Ma'am, if I draw a chart here as to how bad could it be, this arm is, 'Yeah, but how likely is it?' where I end up with is kind of Sony North America plus, what the North Koreans did against Sony North America perhaps enriched by new technology and more aggressiveness in two years. So that's kind of my circle as most likely, most dangerous right now. If done in sequence over multiple firms, that's a foreign government attacking a North American firm to coerce its behavior."