Internet
sandwich attack
What does sandwich attack mean?
An MEV tactic where a bot places a buy just before a victim's large trade and a sell just after, profiting from the price movement it sandwiches around the target order.
"That big market buy got sandwiched — the bot bought ahead and dumped right after."
Origin
On-chain MEV strategy named for surrounding a trade like sandwich bread.
Frequently asked questions
What is a sandwich attack in crypto?
It is an MEV tactic where a bot buys just before a victim's large trade and sells just after, profiting from the price movement it brackets around the order.
How do you avoid a sandwich attack?
Traders reduce the risk by setting tight slippage limits, using smaller orders, or routing trades through private mempools that bots can't see.
Why is it called a sandwich attack?
Because the attacker's buy and sell surround the victim's trade like the two slices of bread around a sandwich filling.
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