Ethereum researcher says quantum-safe wallet protection could cost $0.07 per account and work without a hard fork.
An Ethereum researcher says users could start protecting accounts from future quantum computer risks today. The proposal would not require a hard fork.
Nico, who leads the Ethereum Foundation privacy project Kohaku, shared the account-level approach. He said the upgrade could cost about $0.07 per account.
The idea focuses on preparing wallets before quantum computers become a direct threat. It would add a protection layer that supports quantum-resistant cryptography.
The design has already completed an initial review with Fable. More audits are planned before any wider use across Ethereum accounts.
Ethereum Accounts Could Add Quantum Protection
Nico said Ethereum can begin preparing accounts for the post-quantum era without changing the base protocol.
The proposal works at the account level. Therefore, it would not need a hard fork. The approach would let users add protection directly to their wallets.
It is designed to support cryptographic methods that resist future quantum attacks. This could help accounts stay safer as computing risks evolve.
Ethereum Researcher Says Post-Quantum Account Protection Can Be Implemented Today for $0.07
Ethereum Foundation privacy project Kohaku lead Nico said Ethereum can begin preparing accounts for the post-quantum era today without requiring a hard fork. According to Nico, the… pic.twitter.com/bsKzN8mcYX
— Wu Blockchain (@WuBlockchain) June 13, 2026
Quantum computers are not currently breaking Ethereum wallets at scale. However, researchers have been studying how blockchains should prepare early. The proposal aims to offer a practical step before the risk becomes urgent.
Deployment Cost Estimated at Seven Cents
The proposed account protection would cost about $0.07 per wallet to deploy.
That estimate makes the approach cheaper than many onchain actions. It also makes large-scale preparation easier for users and developers.
⚛️ Un chercheur sur Ethereum affirme qu'il est possible de protéger les comptes contre les ordinateurs quantiques dès aujourd'hui… pour seulement 0,07 $.
Selon un responsable du projet de confidentialité Kohaku à la Fondation Ethereum, Ethereum pourrait commencer à préparer ses… pic.twitter.com/ScfefrP4as
— Goku 🗞 (@Crypto__Goku) June 13, 2026
Low cost matters because Ethereum has millions of active and inactive accounts.
A cheaper setup could reduce barriers for broader adoption. However, users would still need clear tools and guidance.
The design does not require all accounts to upgrade at once. Instead, users could add protection when they choose.
This flexible model may help wallets, apps, and custodians plan gradual adoption.
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Security Reviews Remain Ongoing
The proposal has completed an initial review with Fable, according to Nico. Further audits are expected before any major rollout.
These checks will test whether the design works safely under real conditions. Security review is important because wallet protection affects direct user funds.
Any account-level system must avoid new risks while reducing future ones. Developers will also need to confirm compatibility with existing Ethereum tools.
The proposal adds to wider Ethereum research around privacy, security, and long-term resilience.
Kohaku focuses on privacy work, but this idea targets future cryptographic safety. For now, the discussion shows how Ethereum developers are preparing for post-quantum risks.
The next step will depend on audits, developer testing, and wallet support. If reviews are positive, account protection tools could move closer to public use.
The proposal places Ethereum quantum safety back into market and developer focus.
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