After being in the cryptocurrency circle for a long time, sometimes you may not have a concept of money, but in fact, the exchange negligently gave North Korean hackers 1.5 billion US dollars, which is equivalent to the stock market value of 6 Naixue and 1 Cha Baidao, and more than the annual income of MGM and Galaxy in Macau. It can support a company with tens of thousands of people in a year. And 50 million US dollars, about 360 million RMB, can support a small entrepreneurial team and buy an apartment in Shenzhen every year if it is left in the bank to earn interest.