South Korean police confirmed for the first time that 342,000 ETH was stolen from Upbit, South Korea's largest exchange, in 2019 by North Korean official hacker groups Lazarus and Andariel. 57% of ETH was exchanged for Bitcoin at a low price, and the rest of the assets were laundered through 51 overseas exchanges. After 4 years of tracking, the police recovered 4.8 Bitcoins from a Swiss exchange and returned them to Upbit.