According to CoinJie.com, on March 22, an attacker exploited a minting vulnerability to create approximately 80 million USR without collateral. Of these, about 34 million USR have been sold, exchanged for 11,409 ETH (approximately $24.48 million), currently stored at address 0x8ED...81C; the remaining roughly 46 million USR have been burned by the project team through a contract upgrade from the attacker’s address. Based on the above, the actual loss from this vulnerability exploitation is estimated to be around $34 million.