Ethereum
MetaMask Decommissions Staking Validators Following Infrastructure Incident
The wallet provider is withdrawing affected Ethereum staking nodes as a precaution after identifying an infrastructure security issue.
MetaMask disclosed on September 30, 2026, that it is managing an active security incident impacting parts of its infrastructure. In response, the company has begun exiting the affected validators in its staking division in coordination with partners and security advisers, with validator exits expected to conclude by October 7.
The firm clarified that its staking service operates on a non-custodial basis, meaning MetaMask does not hold user withdrawal keys, and reported that it found no immediate security risk to end-user wallet balances. However, staked ether associated with the deactivated validators will not generate rewards until the situation is resolved.
MetaMask did not disclose technical specifics regarding the breach or the total volume of validators involved. Independent analysis published on social media platform X by researcher Kaden stated that 18 out of 19 examined MetaMask validators had rewards redirected, resulting in a recorded loss of 0.36 ETH, while the protective validator shutdowns affect holdings estimated in the hundreds of thousands of ether.
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