The cryptocurrency industry has been shaken by a substantial $292 million exploit, which has exposed significant vulnerabilities in the decentralized finance (DeFi) infrastructure and raised concerns about the potential knock-on effects across lending protocols. While investigations are ongoing, preliminary analysis suggests that the attack focused on Kelp's rsETH token and the mechanism used to transfer assets between blockchains. The perpetrator appears to have manipulated the system to create a large number of unbacked tokens, which were then used as collateral to borrow and drain real assets from lending markets, primarily from Aave, the largest decentralized crypto lender.
This incident is the latest setback for DeFi, occurring just weeks after the $285 million exploit of Solana-based protocol Drift, further eroding investor trust in the nearly $90 billion crypto sector. The attack targeted a LayerZero bridge component, a critical piece of infrastructure that enables assets to move across different blockchains.
According to Charles Guillemet, CTO of hardware wallet maker Ledger, the system relied on a single-signer setup, allowing a single entity to approve transactions. The attacker exploited this weakness, minting large amounts of rsETH without proper backing, and then used these tokens as collateral to borrow real assets from lending protocols. The maneuver has shifted the problem from a single exploit to a broader market issue, with DeFi lending platforms now holding collateral that may be difficult to unwind, while valuable and liquid assets have already been drained.
As a result, Aave and other lending protocols may be sitting on hundreds of millions of dollars in questionable collateral and bad debt, raising concerns about a potential 'bank run' dynamic as users rush to withdraw funds. The incident has also sparked concerns about the trust in DeFi protocols, with Guillemet stating that 2026 is likely to be the worst year for hacks in the sector.