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Coming up for air now after a very dense excellent week in Seoul at KBW, while staying on top of our response to a security event affecting part of our infrastructure. I can now respond to queries and speculation regarding what is impacted and what is not affected. Based on our investigation to date, there is no indication that MetaMask wallets or customer funds in wallets have been affected. Your Secret Recovery Phrase, your keys, and the assets in your wallet were not part of this incident because they CANNOT be. You custody and control your own keys. That is how self custody works. You are fully in control of your own money in MetaMask. Like many providers in our industry, we constantly face attempted attacks from a range of threat actors and periodically encounter security issues. Our approach follows established best practice: we do not publicly discuss the details of an open incident, but we disclose promptly to partners and relevant stakeholders once an issue is sufficiently understood. In this case, we shared the relevant details with partners, agreed and implemented a response strategy together, and then disclosed publicly. As a precaution, we and our partners rotated validator keys. That step is operationally inconvenient which is regrettable as validators must exit the staking queue and then re-enter the queue to restake, which takes time. The validator staking architecture of Ethereum separates the key that proposes and attests from the key that can withdraw the stake. In accordance with the Ethereum principle of self-custody, we do not hold withdrawal keys for our clients. Because of that separation, an issue in the validator infrastructure CANNOT result in the improper movement of the underlying ETH. Rotating those keys was how we reduced residual operational risk. Self-custody and user control are a central design principle guiding how we build -- in MetaMask, in staking and validation, and across Ethereum more broadly. Self custody plus rigorous decentralization represents a paradigm shift in security. Increasingly, the world is waking up to the benefits of this sounder architecture.

We’re continuing to actively investigate and respond to the security incident affecting part of our infrastructure. Our focus remains on working closely with affected partners and taking appropriate steps to protect users. As part of this, we worked with our partners to take the precautionary step of exiting affected validators. Based on our investigation to date, there is no indication that MetaMask wallets or customer funds have been affected. Our teams continue to work through containment and verification, and we’ll share further verified information as appropriate. As always, please remain vigilant: be cautious of unsolicited messages, never share your Secret Recovery Phrase or private keys, and rely on official MetaMask channels for updates. MetaMask will never ask you for your Secret Recovery Phrase. We’ll continue to share updates here as our investigation progresses:

Security Update: We are responding to a security incident affecting part of our infrastructure. At this time, we have identified no immediate threat to MetaMask wallets. As a precaution, we are proactively exiting affected validators within our non-custodial staking operations, in coordination with clients, partners and security advisors. We’ll share further updates as appropriate.