April DeFi Exploits Drove $13 Billion in Outflows, Binance Says

A wave of exploits in April pushed roughly $13 billion out of decentralized finance, sharply compressing total value locked across lending markets and exchanges. Binance Research said the outflows cut the onchain leverage ratio to about 38%, a level the firm described as a return to 2021 readings.

The biggest single blow came from liquid-staking protocol KelpDAO. Bitcoin.com News reported that KelpDAO lost nearly $292 million after an exploit via Layerzero's cross-chain messaging. The protocol later shifted its rsETH token to Chainlink's CCIP, replacing the compromised bridge.

The attack rippled through the ecosystem. Aave, one of the largest lending platforms, saw $2.6 billion in deposits exit within 48 hours, pushing its total value locked down 44% for the month, Aave's own dashboards show. The withdrawals spread to neighboring protocols as depositors raced to pull funds.

April marked one of the most concentrated periods of hacks on record. Industry trackers counted more than 20 separate exploits during the month, according to a tally compiled by Rekt News. Several protocols paused operations in the immediate aftermath, including certain KelpDAO withdrawal queues and one Aave pool on Arbitrum.

In response, multiple projects have moved cross-chain messaging to alternative providers and tightened verification protocols. Binance Research noted that the speed at which liquidity returns after confidence stabilizes has historically been a positive signal for DeFi, though the $13 billion outflow figure remains unmatched in recent quarters.

The 38% leverage reading is a data point that contrasts with the 55%–60% range seen during the 2024 bull runs. Lower leverage reduces the risk of forced liquidations but also signals a sharp drop in risk appetite. Whether deposits rebuild will determine if April marked a temporary shock or a longer reset for onchain finance.