It seems North Korean hacker groups are real, and not the paranoid fantasies of South Korean intelligence:
In late October South Korean intelligence reported that between May and September North Korea managed to distribute over 20,000 to South Korean smart phone users games containing spy software. The North Korean “spyware” was seeking information from banks as well as documents relating to reunification plans and defense matters. The spyware allowed the North Koreans to transfer data from the infected smart phone and secretly turn on the camera. The government reported that this effort has since been blocked. North Korea denied any involvement in this, as it usually does. But over the past few year the evidence has been piling up of increasing North Korean Internet based espionage via the Internet.
In late 2013 South Korea came up with a number (over $800 million) for the cost of dealing with North Korean cyber attacks since 2007.
Theft is the only way for thoroughly progressive governments like North Korea’s to stay in business. The trick is figuring out the best place to cut them off from their ill-gotten gains.