Justin Drake: Quantum computing poses a tangible threat to crypto, Ethereum aims for post-quantum security by 2029, and US regulations could slow innovation | Bankless

Quantum computing poses a real threat, pushing Ethereum to pioneer post-quantum security by 2029.

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Add us on Google by Editorial Team Mar. 23, 2026

Key takeaways

• Quantum computing is transitioning from a theoretical concept to a tangible threat for the crypto industry.
• Ethereum is positioning itself to be the first post-quantum secure global financial system.
• Breakthroughs in quantum computing have drastically reduced the qubit requirements for breaking cryptography.
• Ethereum aims to achieve full post-quantum security by 2029.
• The concept of “Q Day” signifies when quantum computers can compromise current cryptographic systems.
• The US government is starting to regulate the publication of algorithmic advancements for national security.
• The number of physical qubits needed for one logical qubit is currently high but expected to decrease.
• Approximately 1,500 logical qubits are necessary to break ECDSA.
• There are two primary types of quantum computers, each with unique advantages and speeds.
• Nation-states might use quantum computing for espionage rather than direct attacks on crypto.
• Quantum advancements could redefine the competitive landscape of financial systems.
• Ethereum’s roadmap includes strategic adaptations to counteract quantum threats.
• The crypto industry must urgently address quantum computing’s security challenges.
• Government intervention may slow technological progress in quantum computing.
• Quantum computing developments are pivotal for future cybersecurity strategies.

Guest intro

Justin Drake is a researcher at the Ethereum Foundation focusing on cryptographic protocols, sharding, and post-quantum security. He played a key role in Ethereum’s transition to Proof of Stake through The Merge and coordinates researchers advancing Ethereum’s scalability and resilience. His work addresses quantum threats, targeting post-quantum readiness by 2029.

Quantum computing as a strategic opportunity for Ethereum

• Quantum computing presents an opportunity for Ethereum to become the first post-quantum secure global financial system.

  — Justin Drake

• Ethereum’s strategy involves leveraging quantum challenges to differentiate itself.

• I’ve stopped thinking about post quantum as a hurdle… it’s an opportunity.

  — Justin Drake

• The competitive landscape could shift with Ethereum’s post-quantum advancements.
• Ethereum’s proactive stance could set a precedent for other digital assets.
• Quantum readiness is becoming a critical factor in blockchain security.
• The transition from theoretical to material threat necessitates strategic planning.

• Quantum has moved from theoretical to something materially impacting our industry.

  — Justin Drake

• Ethereum’s post-quantum vision aligns with its long-term security goals.
• The timeline for quantum readiness is crucial for Ethereum’s roadmap.

• My completion date for Ethereum being fully post quantum secure is 2029.

  — Justin Drake

• Ethereum’s focus on quantum security reflects its commitment to innovation.

The evolving threat of quantum computing to cryptography

• Recent breakthroughs significantly reduced the qubits needed to compromise cryptography.

• There was a paper that made a 10x improvement bringing it down to 1,000,000 physical qubits.

  — Justin Drake

• A further 10x improvement reduced the requirement to 100,000 qubits.
• Quantum advancements highlight the urgency for cryptographic evolution.
• The crypto industry must adapt to these rapid technological changes.

• Quantum computing has moved from theoretical to a material threat.

  — Justin Drake

• Understanding qubit improvements is essential for future cybersecurity.
• The reduction in qubit requirements poses a significant risk to current systems.
• Cryptographic resilience is now a priority for blockchain technologies.
• The timeline for quantum advancements is accelerating faster than anticipated.
• The industry must prepare for potential cryptographic disruptions.
• Quantum computing developments are reshaping cybersecurity strategies.

Ethereum’s roadmap to post-quantum security

• Ethereum aims to be fully post-quantum secure by 2029.

• My completion date for Ethereum being fully post quantum secure is 2029.

  — Justin Drake

• The roadmap includes strategic adaptations to counteract quantum threats.
• Ethereum’s proactive stance is pivotal for its long-term security.
• The concept of “Q Day” is central to Ethereum’s quantum strategy.

• Q day refers to the point when quantum computers can break current signature schemes.

  — Justin Drake

• Ethereum’s timeline aligns with its commitment to innovation and security.
• Post-quantum readiness is a critical milestone for Ethereum.
• The roadmap reflects Ethereum’s leadership in blockchain security.
• Quantum security is integral to Ethereum’s competitive advantage.
• Ethereum’s strategy could redefine the financial system landscape.
• The timeline for quantum readiness is crucial for Ethereum’s future.

Government intervention in quantum advancements

• The US government is starting to regulate algorithmic advancements for national security.

• The US government is starting to intervene with the publication of ideas.

  — Justin Drake

• This intervention could impact innovation in quantum computing.
• Government influence may slow technological progress in critical algorithms.
• National security concerns are driving regulatory actions.
• The balance between innovation and security is becoming more complex.

• Those are not completely being disclosed potentially for national security reasons.

  — Justin Drake

• The crypto industry must navigate these regulatory challenges.
• Government actions could affect the pace of quantum advancements.
• The implications for technological development are significant.
• Regulatory dynamics are reshaping the landscape of quantum computing.
• The industry must adapt to evolving government policies.

The technical landscape of quantum computing

• The number of physical qubits needed for one logical qubit is currently around a thousand.

• The number of physical qubits to get one logical qubit today is a few 100.

  — Justin Drake

• Advancements in qubit quality and error correction could improve this ratio.
• The relationship between physical and logical qubits is crucial for quantum computing.

• It’s possible that in the future we’ll only have 100 physical for every logical one.

  — Justin Drake

• Error correction is a key factor in qubit technology advancements.
• The technical landscape is rapidly evolving with quantum developments.
• Understanding qubit technology is essential for future innovations.
• The industry must keep pace with these technical advancements.
• The implications for cybersecurity are profound with these developments.
• Quantum computing is redefining the technical parameters of cryptography.
• The landscape is becoming more complex with rapid technological changes.

The geopolitical implications of quantum computing

• Nation-states might use quantum computing for espionage rather than direct attacks.

• They’ll use their powers to attack things in a stealthy way.

  — Justin Drake

• The strategic motivations of nation-states are evolving with quantum advancements.
• Quantum computing could alter the geopolitical landscape significantly.
• The potential for espionage is a critical consideration for nation-states.
• The crypto ecosystem must assess the risks of geopolitical dynamics.
• Quantum computing developments could influence global power structures.
• The implications for national security are becoming more pronounced.
• The industry must prepare for potential geopolitical disruptions.
• Quantum advancements are reshaping the strategic landscape.
• The balance between innovation and security is increasingly complex.
• The geopolitical landscape is evolving with quantum computing’s rise.

Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.