MetaMask Exits Validators Amid Security Incident

MetaMask has begun exiting affected Ethereum validators after identifying a security incident in its non-custodial staking infrastructure. The company is coordinating its response with Lido Finance, clients, and security advisers.

No immediate threat to MetaMask wallets was identified, but the protocol's non-custodial staking operations were affected. For stETH holders, Lido stated that no action is required as the protocol manages the return of ETH from the affected validators.

Lido expects the exits to complete by October 7, 2026, with the full process taking approximately 45 days. The company's reserve fund holds over 6,750 stETH to manage withdrawals.