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Ostium OLP Vault Attacked, Approximately $24 Million USDC Stolen and Transferred to Tornado Cash

2026.07.16 - 00:20

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TechFlow reports, July 16, according to monitoring by on-chain analyst PeckShield (@PeckShieldAlert), the decentralized perpetual contract protocol Ostium (@Ostium) public OLP vault was attacked, with approximately $24 million USDC stolen. The attacker subsequently swapped the stolen funds for 12,080 ETH and has transferred 10,540 ETH to the mixer Tornado Cash to obscure the fund flow.

On-chain tracing shows that the attacker's initial funds originated from ChangeNow and Bybit, each transferring 1 ETH to the attack wallet (0x321D...8bfD9).

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