Earlier today, a user attempted to purchase AAVE with $50 million worth of USDT through the Aave trading interface.
Due to the unusually large order amount, the Aave trading interface (like most trading interfaces) warned the user of abnormal slippage and required confirmation via a checkbox. The user confirmed the warning on their mobile device and proceeded with the exchange, accepting the high slippage and ultimately receiving only 324 AAVE.
The user had to explicitly accept the risk by confirming the checkbox for the transaction to continue.
The CoW exchange routing functioned correctly, and the integration process complied with industry standards. However, while the user was able to complete the exchange, the final result was clearly far from ideal.
Such incidents occur frequently in the DeFi space, but the scale of this transaction far exceeds the typical occurrences in this sector.
We deeply sympathize with the user and will attempt to contact them while refunding the $600,000 in fees charged on the transaction.
The key point is that while DeFi should remain open and permissionless, allowing users the freedom to trade, the industry can build additional safeguards to better protect users. Our team will study how to further improve these safeguards.