Toxic Pools Deceive Users with Fake Quotes on Ethereum and Polygon

DeFi firm Enso has uncovered a new threat in the decentralized finance space, dubbed 'toxic pools.' These malicious liquidity pools fake transaction quotes during simulations but execute trades at worse rates, causing significant losses and failed transactions.

The toxic pools exploit off-chain trade previews on Ethereum and Polygon, leading to tens of thousands in lost fees and degraded user experience. Enso has updated its Enso Shield tool to detect these manipulations and is calling for industry-wide efforts to improve execution integrity verification.

This threat challenges DeFi front-ends that promise best trade execution but may unknowingly route users to toxic pools, resulting in financial losses for users.