0x Reports Over Half of Uniswap v4 Hooks Are Malicious

Decentralized trading infrastructure provider 0x reported that more than half of the Uniswap v4 hooks it analyzed are malicious. After examining 84,163 hooks across six chains, 0x found that only 19.4% were safe, while 54.2% were malicious and 26.4% were potentially malicious. These hooks deceive aggregators and wallets by providing one price during the quote request and another during settlement, leading to significant slippage for users. 0x has implemented detection and audit measures to exclude such pools from its routing and advises applications to maintain strict controls against suspicious routes.