mev-protection-guide

A sandwich attack is a type of Maximal Extractable Value (MEV) attack where bots frontrun and backrun your transaction to manipulate asset prices. This DeFi risk causes traders to receive worse execution prices and lose value on decentralized exchanges.

Protect your transactions from MEV and frontrunning by applying strategies like setting low slippage tolerance, using private mempools such as Flashbots Protect, routing through DEX aggregators, and placing limit orders to prevent price manipulation.

You need a private mempool for blockchain trading when submitting large or slippage-sensitive DeFi transactions. It hides your transaction from public mempools, preventing MEV bots from seeing and exploiting your trade through sandwich attacks or frontrunning.

The best way to avoid MEV extraction on decentralized exchanges is combining low slippage settings with DEX aggregators. Aggregators split trades across multiple liquidity pools to minimize price impact, while private mempools hide pending transactions from extracting bots.

Setting low slippage limits the profit margin for MEV sandwich attacks, making your transaction less attractive to bots. While it reduces risk, combining low slippage with private mempools provides stronger protection against frontrunning and MEV extraction.

Frontrunning in MEV occurs when a bot places a transaction ahead of yours to profit from your pending trade, while backrunning places a transaction immediately after yours. Both are Maximal Extractable Value strategies that extract value from your trading activity.