In response to a $292 million exploit that has left a substantial collateral shortfall, Aave and several prominent cryptocurrency firms have launched a joint recovery effort, dubbed 'DeFi United', to stabilize decentralized finance (DeFi) markets. The initiative aims to restore the backing of rsETH, a yield-bearing ether (ETH) derivative token at the center of the exploit.
Aave has announced that multiple participants have already committed to supporting the effort, with staking provider Lido Finance and EtherFi being among the first to offer aid. Lido Labs Foundation has proposed allocating up to 2,500 stETH, valued at approximately $5.7 million, to a dedicated relief fund, while EtherFi has suggested a 5,000 ETH plan to protect users and prevent bad debt across DeFi. Aave's founder, Stani Kulechov, has also pledged 5,000 ETH towards the recovery effort, stating that he is working tirelessly to find the best possible outcome for users and to normalize market conditions as soon as possible. The initiative follows the largest crypto exploit of the year, which has sent shockwaves through DeFi lending markets.
The incident occurred due to a vulnerability in KelpDAO's integration with LayerZero, allowing an attacker to mint 116,500 unbacked rsETH tokens. The attacker then deposited nearly 90,000 rsETH into Aave as collateral, borrowing around $190 million in ETH and other assets. This has resulted in impaired collateral, triggering a rush of withdrawals and a $10 billion decline in the total value of assets on Aave. The total shortfall is estimated to be over 112,000 rsETH, according to Aave's incident report.
Prior to the DeFi United initiative, some early containment efforts were made, including the freezing of 30,766 ETH by Arbitrum's security council. However, the remaining stolen funds were bridged and swapped into bitcoin via Thorchain, complicating the recovery process. The current effort focuses on stabilizing the system through a coordinated bailout to recapitalize rsETH and mitigate losses, rather than attempting to recover the stolen funds.