Aave's Ethereum mainnet and Plasma USDT liquidity have sharply declined following an attack on Kelp DAO. As of April 19, Aave V3 Core Market reported USDT deposits of $3.29 billion, but available liquidity has dwindled to approximately $400,000, resulting in a utilization rate of 99.99%. Similarly, the Plasma Market's USDT0 reserve, totaling $1.35 billion, has less than $0.01 in available liquidity, marking a 100% utilization rate.