The FBI has officially accused a group of hackers from North Korea of attacking the Binance crypto exchange and stealing $6.3 billion. US intelligence agencies have released the addresses of more than 600 cryptocurrency wallets linked to the TraderBug hackers. The FBI urges exchanges to block transactions with these accounts. Binance claims to have returned 90% of stolen funds to customers. Presumably, the hacker attack could have started by breaking into the laptop of one of the development engineers.