TLDR:
- Joseph Lubin says no indication exists that MetaMask wallets or customer funds were affected.
- Consensys and its partners rotated validator keys as a precaution after the security incident.
- Validator and withdrawal keys are separate, so the incident cannot cause unauthorized ETH transfers.
- Lubin says Consensys does not hold withdrawal keys for clients, in line with Ethereum self-custody.
Joseph Lubin, Ethereum co-founder and Consensys founder, said a security incident affected part of the company’s infrastructure.
However, the investigation so far shows no indication that MetaMask wallets or customer funds were affected. Lubin added that users’ recovery phrases and private keys were not involved.
Consensys and its partners rotated validator keys as a precaution. He also explained that validator and withdrawal keys are separate, so the incident could not cause unauthorized transfers of staked ETH.
Joseph Lubin Clarifies Scope of the Security Incident
In a post on X, Joseph Lubin said he returned from a dense week in Seoul at KBW. During the event, he stayed on top of the response to the security event. The post followed the public disclosure of the incident. He can now respond to queries and speculation.
Lubin wrote that “there is no indication that MetaMask wallets or customer funds in wallets have been affected.” He then addressed user keys directly.
The Secret Recovery Phrase and wallet assets “were not part of this incident because they CANNOT be,” he said. He added, “You custody and control your own keys. That is how self custody works.”
Lubin also said Consensys faces attempted attacks from a range of threat actors. Like many providers, the company periodically encounters security issues. He explained that “we do not publicly discuss the details of an open incident.”
Lubin said the company discloses issues “promptly to partners and relevant stakeholders once an issue is sufficiently understood.”
In this case, Consensys shared details with partners. Both sides agreed on a response strategy and implemented it together. The company then disclosed the incident publicly. This sequence matches the approach he described.
Validator Key Rotation and Ethereum Staking Design
As a precaution, Consensys and its partners rotated validator keys. Lubin called the step “operationally inconvenient,” noting it was regrettable.
Validators must exit the staking queue and then re-enter it to restake. This process takes time. The change also required coordination with partners.
Lubin explained that Ethereum’s validator architecture separates two keys. One key proposes and attests, while another can withdraw the stake. He said “an issue in the validator infrastructure CANNOT result in the improper movement of the underlying ETH.”
On custody, Lubin stated, “In accordance with the Ethereum principle of self-custody, we do not hold withdrawal keys for our clients.”
Therefore, the incident could not lead to unauthorized transfers of staked ETH. Rotating the keys reduced residual operational risk.
Lubin described self-custody and user control as central design principles at Consensys. He said they guide MetaMask, staking, and validation.
He also applied them across Ethereum more broadly. Joseph Lubin concluded that “self custody plus rigorous decentralization represents a paradigm shift in security.” He noted the world is increasingly waking up to the benefits of this architecture.
The post Joseph Lubin: No MetaMask Wallets or Customer Funds Affected by Security Incident appeared first on Blockonomi.
This articles is written by : Nermeen Nabil Khear Abdelmalak
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