According to Odaily Planet Daily, Cyvers Alerts monitoring showed that the DeFi project DeltaPrime on the ARB chain was suspected of being attacked and the administrator seemed to have lost the private key.
Suspicious addresses are continuously transferring assets. The affected liquidity pools include DPUSDC, DPARB, and DPBTCb. The attacker has converted USDC into ETH.
Total losses are estimated to be around $4.5 million so far, and the total could increase as the attack continues.