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G7 Cyber Group Issues Guidance for Quantum-Resilient Financial Systems

Quantum Insider
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⚡ Quantum Brief
The G7 Cyber Expert Group, led by the U.S. Treasury and Bank of England, released guidance on January 2026 urging financial institutions to adopt quantum-resilient cryptography to counter future threats from advanced quantum computers. The non-binding roadmap provides flexible recommendations for stakeholders—including banks, regulators, and tech suppliers—to transition securely, emphasizing coordinated action without imposing rigid mandates. Co-chairs warned that quantum computers could eventually break current encryption, jeopardizing financial system integrity, stressing the need for proactive measures to safeguard data and infrastructure. The G7 CEG, established in 2015, includes financial authorities from all G7 nations and the EU, focusing on cybersecurity policy, cross-border cooperation, and incident response. While quantum computing promises financial innovation, the guidance highlights cryptographic risks, urging institutions to balance opportunity with preparedness against emerging quantum-driven cyber threats.
G7 Cyber Group Issues Guidance for Quantum-Resilient Financial Systems

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The G7 Cyber Expert Group (CEG), chaired by the U.S. Treasury and the Bank of England, released guidance for financial entities on transitioning to quantum-resilient cryptography. The roadmap outlines considerations and potential activities for stakeholders but does not impose prescriptive requirements, allowing flexibility for each organization. G7 CEG membership includes financial authorities from all G7 countries and the EU, coordinating cybersecurity policy, information sharing, and incident response since 2015. Photo from Pexels by David Montanari. PRESS RELEASE — The G7 Cyber Expert Group (CEG) – chaired by the U.S. Department of the Treasury and the Bank of England – released a public statement today advising financial entities, authorities and suppliers of key considerations and potential activities for transitioning to quantum-resilient technology in a coordinated and timely way. Quantum computers have the potential to revolutionize the financial sector, unlocking significant new capabilities and opportunities for organizations. This is not without risk however – sufficiently advanced quantum computers have the potential to break widely used cryptographic protocols that protect our systems and data. G7 CEG Co-Chairs, U.S. Treasury’s Deputy Assistant Secretary for Cybersecurity and Critical Infrastructure Protection Cory Wilson and the Bank of England’s Executive Director for Supervisory Risk Duncan Mackinnon, said: “The introduction of quantum computers that can break our encryption tools presents a significant risk to the safety and soundness of our financial ecosystem. This is something we must address together, and the roadmap guidance will be an important reference for organizations to consider as they prepare their systems and data to be quantum resilient.” The G7 CEG’s roadmap outlines several considerations for financial sector stakeholders, authorities and industry about the cryptographic risks associated with quantum computers. The roadmap and its associated timeline are not prescriptive, providing organizations with the flexibility to implement as appropriate for their unique situation. The G7 CEG’s membership includes representatives of financial authorities across all G7 countries as well as the European Union. It was founded in 2015 to serve as a multi-year working group that coordinates cybersecurity policy and strategy across the member jurisdictions. In addition to policy coordination, the G7 CEG also acts as a vehicle for information sharing, cooperation, and incident response. Bank of Englandfinancial sector securityG7 CEGQuantum cryptography Mohib Ur Rehman LinkedIn Mohib has been tech-savvy since his teens, always tearing things apart to see how they worked. His curiosity for cybersecurity and privacy evolved from tinkering with code and hardware to writing about the hidden layers of digital life. Now, he brings that same analytical curiosity to quantum technologies, exploring how they will shape the next frontier of computing. Share this article:

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Source: Quantum Insider