Tether blacklists validator address that drained MEV bots for $25M By Cointelegraph

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, the issuer behind the leading stablecoin Tether (USDT), has blacklisted an address that drained Maximal Extractable Value (MEV) bots for $25 million last week.

The address in question exploited a bug in the MEV-boost relay to outsmart the MEV bots trying to execute a sandwich trade. Sandwiching occurs when one order is placed immediately before the trade and another immediately after it. In essence, the trader will front-run and back-run at the same time, sandwiching the original pending transaction in between.

Rouge validator address. Source: Etherscan
Digital assets held in blacklisted validator address. Source: Etherscan