Emergency suspension of deposits and withdrawals: South Korea's Upbit exchange confirms a hack. Just now, South Korea's largest crypto exchange, Upbit, issued an emergency announcement stating that deposits and withdrawals for all chains on the exchange have been suspended. The reason? At 4 a.m. this morning, Solana-related assets within the exchange were transferred to an external anonymous address, involving multiple SOL chain tokens such as USDC, SOL, and BONK. To prevent further abnormal transfers, the exchange has temporarily moved all assets to cold wallets and is conducting an urgent investigation. This is yet another piece of negative news in the short term following the South Korean Financial Supervisory Service's official announcement of a regulatory investigation into Upbit.