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💎 DeFi🔴 BearishImportance 7/10Actionable

DeFi User Loses $50.4M in One Swap as MEV Bots and Protocol Failures Collide

Blockonomi|Brenda Mary|
🤖AI Summary

A DeFi user lost $50.4M in a single swap from aEthUSDT to aEthAAVE after confirming a 99.9% price impact warning on CoW Swap. The transaction was routed through an illiquid SushiSwap pool due to protocol failures, then exploited by MEV bots through a sandwich attack that netted $9.9M profit.

Key Takeaways
  • A DeFi user lost $50.4M in one swap despite receiving a 99.9% price impact warning
  • CoW Swap's legacy gas ceiling and solver failure forced the trade through a $73K illiquid SushiSwap pool
  • A mempool leak exposed the transaction to MEV bots who executed a profitable sandwich attack
  • The MEV bot earned $9.9M profit while Titan Builder extracted approximately $34M from the failed trade
  • The incident highlights critical vulnerabilities in DeFi protocol routing and MEV protection mechanisms
Mentioned Tokens
$SUSHI$0.2132+2.8%
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