Monad Co-Founder Highlights Rising Aggregator Spoofing in Uniswap v4 Hooks

Monad co-founder Keone Hon said 0x published an article this morning about a new pattern that first appeared in PropAMM and has now spread to Uniswap v4 Hooks. According to Odaily, the article says malicious market makers alternate between extremely tight and extremely wide quotes to lure aggregators, then widen spreads after trades are routed, while some Hooks switch fees between 0% and 18%. Hon said Solana published a similar article months ago about comparable behavior on Solana aggregators, though the fee cap was around 1%, and later removed it. He added that open systems are meant to eliminate intermediaries and hidden fees, but aggregator spoofing creates a large hidden tax that can only be addressed through fully on-chain order routing. 0x also said malicious Uniswap v4 Hooks have increased recently. It said some Hooks offer attractive prices during quoting, then change execution prices at settlement to take funds from users through aggregators, wallets, and trading apps.