Ethereum Foundation launches post-quantum security hub with more than 10 client teams - CoinDesk

Tech Share Ethereum Foundation prepares for quantum threat with new cryptography roadmap The effort to protect Ethereum from quantum computing threats has been underway for eight years and is now producing working code. By Shaurya Malwa|Edited by Stephen Alpher Updated Mar 25, 2026, 11:34 a.m. Published Mar 25, 2026, 11:33 a.m. Make us preferred on Google What to know: The Ethereum Foundation has launched pq.ethereum.org as a central hub for its post-quantum security roadmap, research, code and FAQs. More than 10 Ethereum client teams are already running weekly post-quantum interoperability devnets as part of a coordinated, open-source effort. Ethereum plans a years-long migration to quantum-resistant cryptography across execution, consensus and data layers, aiming to avoid a disruptive cutoff while preparing for future quantum threats. Ethereum isn't waiting for quantum computers to become a problem before figuring out how to survive them. The Ethereum Foundation launched pq.ethereum.org on Wednesday, a dedicated resource hub for the protocol's post-quantum security effort. The site consolidates a roadmap, open-source repositories, specifications, research papers, EIPs, and a 14-question FAQ written by the EF's post-quantum team. More than 10 client teams are already building and shipping devnets weekly through what the foundation calls PQ Interop, the foundation said in an X post earlier Wednesday. The technical challenge is substantial. Quantum computers are widely believed to will eventually break the public-key cryptography that secures ownership, authentication, and consensus across Ethereum. The EF's position is that a cryptographically relevant quantum computer isn't imminent, but migrating a decentralized global protocol takes years of coordination, engineering, and formal verification. The migration touches every layer of the protocol. At the execution layer, post-quantum signature verification through a vector math precompile would let users transition to quantum-safe authentication through account abstraction without a disruptive "flag day" where everyone has to upgrade simultaneously. At the consensus layer, the current BLS validator signature scheme gets replaced with hash-based signatures called leanXMSS, with a minimal zk-based virtual machine handling aggregation to restore scalability since post-quantum signatures are larger. At the data layer, post-quantum cryptography extends to blob handling for data availability. This connects directly to the strawmap piece from earlier this month where Ethereum co-creator Vitalik Buterin called the document "very important" and walked through the finality improvements. The post-quantum push stood out then because it treated quantum threats as a concrete engineering problem with specific fork targets rather than a hypothetical. While quantum computing represents a threat category that attacks the cryptographic foundations rather than the physical infrastructure, the protocols that prepare earliest will be the most resilient when such a system eventually materializes. More For You The Protocol: Ethereum faces make-or-break moment as scaling, quantum and AI pressures mount By Margaux Nijkerk|Edited by Stephen Alpher 20 hours ago Plus: Solana developer platform, Balancer Labs to shut down and Bitcoin mining concentration triggers small reorg. What to know: Welcome to The Protocol, CoinDesk's weekly wrap of the most important stories in cryptocurrency tech development. I’m Margaux Nijkerk, a reporter at CoinDesk. In this issue: Ethereum faces make-or-break moment in high-stakes balancing act as scaling, quantum and AI pressures mount Solana Foundation taps Mastercard, Western Union, Worldpay for institutional... Read Full Story Latest Crypto News U.S. midterms pack major digital assets wallop as Stand With Crypto preps strategy 19 minutes ago Brazil passes law turning seized crypto into public-security war chest 22 minutes ago Coinbase, Fannie Mae bring crypto-backed mortgages to homebuyers 38 minutes ago Everyone's calling bitcoin resilient, may be it's just complacent 1 hour ago Crypto slides as oil spike, macro jitters trigger derivatives unwind 1 hour ago Bitcoin has traded in a tight range for nearly 50 days – but this is not a "bear flag" 2 hours ago Top Stories Market structure bill compromise draws wide-ranging reaction from fractured crypto crowd 13 hours ago Some bitcoin indicators are still going the wrong way, challenging the bullish $70,000 holdout story 6 hours ago Bhutan moves another 500 bitcoin to exchanges as 2026 outflows top $150 million 7 hours ago U.S. lawmakers dig into tokenizing securities as Trump ties muddy waters 18 hours ago Solana bets on AI agents: Foundation says network is becoming core infrastructure for ‘agentic’ internet 19 hours ago Circle selloff may be overdone as crypto bill weakens Coinbase edge, say analysts 20 hours ago