MEV in Cross-Chain Swaps

Maximal Extractable Value (MEV) in cross-chain swaps refers to the profit that can be extracted by reordering, inserting, or censoring transactions during the bridge transfer process. Because cross-chain swaps often involve multiple steps and interactions with liquidity pools, there are many points where an observer can identify and exploit a user's transaction.

An attacker might front-run a large swap to move the price, or back-run a liquidation to capture the penalty. This creates a hidden tax on users and can lead to inefficient market outcomes.

Mitigating MEV requires the implementation of private mempools, batching transactions, or using decentralized sequencers to ensure fair execution for all participants.