MetaMask disclosed on September 30, 2026, that it is responding to an ongoing security incident affecting part of its infrastructure.

From the articleMetaMask Security Incident Prompts Exit of Affected Ethereum ValidatorsAlso in MetaMask Exits Lido Validators Amid Infrastructure ‘Security Incident’ - Decrypt, MetaMask is exiting validators. Where does the staked ETH go next?, MetaMask exits Lido staking to contain undisclosed 'security incident' - AMBCrypto