Aave V4 proposal introduces bad-debt backstop for Core markets

TokenLogic has submitted a proposal for Aave V4 to establish a bad-debt backstop for lenders within its Core liquidity Hub on Ethereum. The ‘Umbrella’ plan aims to protect suppliers of wrapped Ether (WETH), USDC, and USDT.

Under the proposed framework, the Aave DAO would act as the first line of defense by absorbing initial losses through deficit offsets. If losses exceed these offsets, volunteer underwriters would then use their committed capital to cover the remaining debt. The proposal sets specific underwriting targets—800 ETH, 400,000 USDC, and 400,000 USDT—calculated to cover six to eight weeks of projected loan growth.

Coverage is strictly limited to the specific asset pools receiving deposits. For example, protection for Core USDC would not extend to USDC supplied to other Hubs. Underwriters would receive additional rewards for accepting the risk of loss, though they would face a 20-day cooldown period and remain exposed to potential losses while waiting to exit their positions.