MetaMask announced on the night of September 30 to October 1 that it was dealing with a security incident affecting part of its infrastructure, without providing details on the vulnerability or its scope. As a precaution, the publisher withdrew its validators operating within Lido, with a complete exit expected by October 7 and the return of ETH to the protocol potentially taking up to 45 days. MetaMask stated that no immediate threat has been identified for user wallets, but warned of lost staking rewards and potential unavailability penalties associated with this early exit. The publisher also reminded users of best practices: carefully read each signature request, postpone large swaps and token approvals, and ignore any unsolicited MetaMask support contacts on X, Telegram, or email.
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