MetaMask exits Ethereum validators amid undisclosed security incident

Written by Felix Ngstaff editorReviewed by Yohan Yunstaff editorWritten by Felix Ngstaff editorReviewed by Yohan Yunstaff editorMetaMask exits Ethereum validators amid undisclosed security incident Latest NewsPublishedOct 1, 2026<!–>

MetaMask said it is investigating the threat internally and said it has found no immediate threat to its wallets.

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MetaMask has announced it is responding to a security incident affecting part of its infrastructure and is exiting affected staking validators as a precaution.

In an update on Wednesday, MetaMask said it was addressing the ongoing threat internally and was working with external partners and security advisors. It did not share what the security issue was but said it has not identified any immediate threat to MetaMask wallets.

MetaMask manages over $3 billion of staked Ether (ETH) through its infrastructure, according to its website, making it a major gateway for users wanting to stake their Ethereum.

MetaMask said the precautionary measures involve validators within its non-custodial staking operations.

Cointelegraph reached out to MetaMask but did not receive an immediate response.

Related: Consensys to split into MetaMask and institutional blockchain company

Lido details validator exits and potential penalties

Lido separately said MetaMask Staking had begun taking “precautionary steps to protect client assets related to its operated Ethereum validators,” including exiting its Ethereum validators in the Lido protocol on Wednesday.

MetaMask Staking is a staking service offered through MetaMask Portfolio in three ways — pooled staking, validator staking and liquid staking through Lido and Rocket Pool.

The last of the affected validators are expected to exit by the end of Oct. 7.

“ETH exited from MetaMask Staking-operated validators is expected to return to the protocol gradually as the relevant validators complete the exit, withdrawal, and re-entry cycle, which is estimated to take approximately up to 45 days due to the extended entry queue,” said Lido Finance developer Will Shannon.

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• MetaMask
• Security
• Validator
• Lido DAO
• Blockchain

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