According to Odaily Planet Daily, the on-chain options protocol Moby recommends that users revoke valid approval transactions related to the following addresses: PositionManager, SettleManager, sRewardRouterV2, and mRewardRouterV2.

Moby said these measures are to ensure the security of the wallet and it is currently working to restore and maintain a stable and secure environment.

According to Beosin's monitoring, Moby's private key was suspected to be leaked, and hackers used the emergencyWithdrawERC20 function to withdraw 207 ETH, 3.7 BTC, and 1,470,191 USDC, totaling approximately US$2.5 million.