North Korean hackers steal billions in cryptocurrency. How do they turn it into real cash?

For years, North Korea’s Kim dynasty has made money through criminal schemes like drug trafficking and counterfeiting cash. In the last decade, Pyongyang has increasingly turned to cybercrime—using armies of hackers to conduct billion-dollar heists against banks and cryptocurrency exchanges, such as an attack in 2018 that netted $250 million in one fell swoop. The…