Sandwich Attack
An MEV extraction technique where an attacker places transactions before and after a victim's trade to profit from the price impact.
In-Depth Explanation
Attacker sees a large pending swap, front-runs it (buying first to raise price), lets the victim's trade execute at a worse price, then back-runs (selling at the inflated price). The victim gets worse execution; the attacker profits. Private mempools and MEV-protection services aim to prevent sandwiching.
Related Terms
Maximal Extractable Value
MEVValue that can be extracted by reordering, inserting, or censoring transactions within a block.
Frontrunning
Placing a transaction ahead of a known pending transaction to profit from the anticipated price movement.
Slippage
The difference between the expected price of a trade and the actual executed price.
More in Trading & Markets
View all →Slippage
The difference between the expected price of a trade and the actual executed price.
Maximal Extractable Value
MEVValue that can be extracted by reordering, inserting, or censoring transactions within a block.
Frontrunning
Placing a transaction ahead of a known pending transaction to profit from the anticipated price movement.
Arbitrage
Profiting from price differences of the same asset across different markets or venues.