Kelp DAO hacked: 10+ DeFi protocols including Ethena and ether.fi cut off LayerZero cross-chain bridge connections; AAVE and ZRO plunge over 20% in a single day

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The KelpDAO rsETH cross-chain bridge was hacked, with the shockwaves rapidly spreading across the entire DeFi ecosystem: 10+ protocols including Ethena, Lombard, and ether.fi urgently pulled the plug on LayerZero OFT. AAVE and ZRO both fell over 18% in a single day, marking the largest DeFi attack event of 2026 to date. (Previous coverage: Kelp DAO rsETH cross-chain bridge hacked for $292 million! Triggering chain-reaction freezes on Aave and Compound) (Background: KelpDAO hack: Aave suffers nearly $200 million in bad debt; Curve founder: Non-isolated lending carries high risk) At midnight on the 19th, the KelpDAO rsETH cross-chain bridge was exploited by hackers, who successfully stole 116,500 rsETH (approximately 18% of the circulating supply), with a total value of about $292 million. The impact of the entire incident on the DeFi ecosystem continues to expand. The first to bear the brunt were protocols with direct interactions with rsETH assets. Aave V3 and V4, SparkLend, Compound, Lido, and Fluid urgently froze their respective rsETH-related lending markets or treasury holdings following the attack, cutting off liquidity for rsETH in lending, but the damage had already been done. After obtaining the funds, the attacker deposited the stolen rsETH into DeFi protocols as collateral to borrow WETH. Since the underlying assets of the pledged rsETH were effectively unsupported, it created systemic bad debt. Aave faces nearly $200 million in bad debt pressure, Compound approximately $39.4 million, and Euler approximately $840,000. The aftermath of the incident also affected LayerZero's OFT (Omnichain Fungible Token) cross-chain standard. This mechanism allows the same token to flow seamlessly across 20+ chains, but a shared trust infrastructure also means: if one point is compromised, the entire chain is shaken. Multiple protocols chose to directly cut off their connection to LayerZero OFT, emphasizing that they have no direct exposure to rsETH and that the suspension is a preventive measure, with restoration expected in the short term. These protocols include: Ethena, Lombard, Euler Labs, TRON DAO, ApeCoin/ApeChain, ether.fi, mETH Protocol, Solv Protocol, MOCA Foundation, and River, totaling over 10 protocols that collectively pulled the plug. Panic was simultaneously reflected in token prices, with tokens related to the incident seeing significant declines: - ZRO (LayerZero) is currently trading at $1.57, AAVE is currently trading at $92.07, both falling over 20% in the past 24 hours as the hardest hit. - LDO (Lido) is currently trading at $0.37, down 12.11% - COMP (Compound) is currently trading at $24.2, down 5.56% - … LayerZero OFT was intended to be a liquidity amplifier by enabling the deployment of rsETH across 20+ chains; however, this attack revealed the downside of shared cross-chain infrastructure: when a single verification layer is compromised, the ripples can hit all protocols connected to the same standard simultaneously.

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