Aave and CoW Swap release post-mortems on $50M DeFi swap disaster Both protocols published reports on the March 12 trade where a user swapped $50.4M in aEthUSDT for about $36K in aEthAAVE through Aave’s interface powered by CoW Swap. @aave blamed an illiquid market and is introducing “Aave Shield” to block extreme price-impact trades, while @CoWSwap cited multiple infrastructure failures including stale gas limits, solver execution issues, and a possible private mempool leak.