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Received information about the USR attack and immediately disabled RLP collateral functionality.

Mexc.Co • March 22, 2026

PANews reported on March 22 that Euler Labs stated on its X platform that it is aware of the security incident reported by Resolv regarding the unauthorized issuance of USR. The team is actively investigating, and as a precautionary measure, the RLP collateral function in the Euler Yield vault on Arbitrum has been disabled. Euler Earn USDC (Arbitrum) has also stopped allocating funds to Euler Yield. Euler Labs stated that these measures are intended to isolate potential risk exposure, and the impact of the incident is still being assessed. Further updates will be disclosed in due course.

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The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Euler Labs Responds to Unauthorized USR Minting Incident Euler Labs has acknowledged a security incident involving the unauthorized issuance of USR, as reported by Resolv. In response, the company has disabled the RLP collateral functionality in the Euler Yield vault on Arbitrum and halted fund allocation to Euler Earn USDC (Arbitrum). The team is currently investigating the incident to assess its impact and isolate potential risk exposure. Further updates will be provided as more information becomes available. The incident raises concerns about the security of the Euler platform and its collateral management practices. 4 sources 52

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Arbitrum Euler Labs PANews Resolv