MetaMask Security Incident Prompts Exit of Affected Ethereum Validators

2026-10-02

MetaMask is responding to an ongoing security incident affecting part of its infrastructure. The company is proactively exiting affected validators in its non-custodial staking operations, coordinating with clients and partners. Lido confirmed the exits are underway, with final validators expected to be exited by October 7, likely incurring foregone rewards and possible downtime penalties.