IoTeX private key suspected to have been leaked, resulting in a loss of approximately $4.3 million

According to Specter's disclosure, IoTeX's private key may have been leaked, resulting in the clearing of the token vault and a total loss of approximately $4.3 million. The attacker transferred multiple contract assets, including USDC, USDT, IOTX, PAYG, WBTC, BUSD, and exchanged the stolen assets for ETH, of which 45 ETH have been transferred across chains to the Bitcoin network.