PANews reported on April 1 that according to the official announcement of Upcx, unauthorized activities occurred in its management account, and the platform's UPC recharge and withdrawal operations have been urgently suspended. The official said that user assets were not affected, and the cause of the incident is being actively investigated, and promised to continue to update the progress.

According to Cyvers Alerts, the attacker is suspected of controlling the address 0x4C…3583E, and transferred 18.4 million UPCs (about 70 million US dollars) from three management accounts by upgrading the ProxyAdmin contract and executing the withdrawByAdmin function. The funds are still in the 0xFf7…334 address and have not been redeemed.