 In a country cut off from most of the rest of the world, the Kims have kept an iron grip on power for three generations. This whole IT worker operation is one illicit source of cash among many. To learn more about these IT workers and their role in North Korea's broader cyber operations, I called up Michael Barnhart. He's a North Korea cyber expert for Google's Mandiant. This is the same group of individuals that back in the 90s were making fake Viagra pills.