Ethereum’s Race to Become Quantum-Proof Before It’s Too Late

TLDR

• The Ethereum Foundation launched a new website dedicated to post-quantum security on March 24, 2026
• A new Post-Quantum team plans to implement quantum-safe solutions at the protocol level by 2029
• The team says no imminent quantum threat exists, but preparation must start now due to the complexity involved
• SNARK-based signatures are being used to avoid slowing down the network
• More than 10 client teams are already building and testing on weekly devnets

The Ethereum Foundation launched a new website on Tuesday dedicated to protecting the Ethereum network from future quantum computing threats. The site, found at pq.ethereum.org, is the result of more than eight years of research by the Foundation’s Protocol Architecture and Protocol Coordination teams.

The new Post-Quantum team is planning to roll out quantum-safe solutions at the protocol level by 2029. Solutions targeting the execution layer are planned to follow after that.

The team was clear that there is no immediate danger. Quantum computers cannot break current blockchain cryptography today.

But they say waiting is not an option. Upgrading a global, decentralized network takes years of coordination and testing, and the work needs to start well before any real threat arrives.

The website serves as a central hub for all things related to Ethereum’s quantum roadmap. It includes details on how quantum threats affect each protocol layer, a full roadmap, open-source tools, and an FAQ section.

There is also a six-part interview series and sign-up forms for the second annual Post-Quantum Research Retreat.

How Ethereum Plans to Stay Safe

The team is using SNARK technology — Zero-Knowledge Succinct Non-Interactive Argument of Knowledge — to build quantum-resistant signatures. This approach is designed to keep the network fast and efficient.

Some quantum-proof solutions can cause problems by increasing bandwidth and storage demands. The SNARK method is meant to avoid those performance issues.

Quantum solutions will be built into Ethereum’s consensus, execution, and data layers. The team said its first priority is protecting standard user wallets, as that is where most of the network’s value sits.

After that, the focus will shift to high-value wallets tied to exchanges, bridges, and crypto custody providers.

The Challenges Ahead

Experts have different views on how serious the quantum threat really is. Galaxy Digital analyst Will Owens has said only wallets with exposed public keys are at risk. Capriole Investments’ Charles Edwards has said all coins could eventually be vulnerable.

Upgrading hundreds of millions of accounts without introducing new bugs or security gaps is one of the hardest parts of the plan. The team acknowledged this openly on the new site.

More than 10 client teams are already involved, building and testing on devnets every week through a program called PQ Interop.

The Ethereum Foundation’s post-quantum roadmap can be found in full at strawmap.org.

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