North Korea's Cyber Warfare

The internet is perfect territory on which to fight that kind of guerrilla battle. North Korea has been largely sort of sealed off economically from the outside world. They can't sell stuff like the US and the UK do, so you've got to get money in through the door somehow. The accusation goes is one way that they're getting the money in. It's believed to be billions of dollars through hacking now. Inevitably, that money will go on nuclear weapons programs and missile testing programs.