Upbit, a major South Korean cryptocurrency exchange, has announced an emergency suspension of digital asset deposits and withdrawals following the detection of irregular withdrawal activity involving certain Solana network tokens.
Oh Kyung-seok, CEO of Dunamu, which operates Upbit, apologized for the inconvenience caused to users and acknowledged that the unusual withdrawal activity was detected early Thursday morning.
Affected tokens include DoubleZero (2Z), ACS$0.0₃4168, Bonk$0.0₅9968, death$0.004296operation (OPERATION), they are$0.02652Ionet (IO), JTO$0.5391, Jupp$0.2613, layer$0.2506, myself$0.3703and anything else related to the Solana network.
Dunamu reported that around 54 billion won ($40 million) worth of tokens were transferred to unauthorized wallets and assured users that the exchange would cover all losses to fully protect user assets.
The exchange said in a statement that immediate measures include moving all assets to cold wallets to prevent further fraudulent transactions, cooperating with law enforcement authorities to initiate on-chain freezing measures (including successfully freezing approximately 12 billion won worth of assets related to Solayer tokens), and conducting a thorough security audit of all digital asset transfer systems.
Upbit said it would gradually resume withdrawal services once safety is confirmed, and urged users to report any suspicious activity to customer support.
