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Author: Daii Source: mirror
Last Wednesday (March 12), a crypto trader was widely reported to have lost $215,000 in a single MEV attack.
In simple terms, this user intended to exchange $220,800 worth of USDC stablecoins for an equivalent amount of USDT in the Uniswap v3 trading pool, but ended up receiving only 5,272 USDT, resulting in an asset evaporation of $215,700 within just a few seconds, as shown in the image below.
The above image is a screenshot of the on-chain record of this transaction. The fundamental reason for this tragic event is the notorious "Sandwich Attack" in the blockchain world.
The first to disclose this MEV attack was Michael (see the image above), who explained that:
> An MEV