🚨BREAKING: $AAVE releases post mortem of how a user lost ~$50,000,000 in one transaction.
On March 12, 2026, an @aave interface user ignored a "100% value loss" warning to execute one of the most expensive manual errors in DeFi history.
Here is the critical breakdown of the $50.4M swap incident:
• User Error, Not Protocol Failure:
The Aave Protocol remained fully secure. The incident occurred via a third-party CoW Swap integration on the Aave front-end, where a user manually confirmed a trade despite a 99.9% price impact warning.
• Liquidity vs. Slippage:
This was not a "slippage" issue. Because the user attempted to swap $50.4M of illiquid aEthUSDT for aEthAAVE in a single transaction, the market depth simply didn't exist, resulting in a quoted return of only $36,425.
• The "Killer" Confirmation:
To bypass safety blocks, the user had to manually check a box stating: "I confirm the swap with a potential 100% value loss." Internal audits confirm this was intentionally checked on a mobile device.
• Fee Refund Pending:
The Aave interface collected a $110,368 swap fee from the transaction. Aave Labs has committed to returning these specific funds to the user once they pass a verification process.
• Deployment of "Aave Shield":
In response, Aave is launching Aave Shield, a new safety layer that automatically blocks any swap with a price impact over 25%. Users must now deep-dive into advanced settings to disable this protection.
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