Protecting Blockchain Networks from Quantum Threats
A Framework for Quantum Resistance
Source: LACChain
We are very glad to communicate that our paper “Quantum Resistance in Blockchain Networks” has been published by Scientific Reports journal from Springer-Nature and is publicly available online. This represents a very rewarding recognition to the work that we began in 2020 in collaboration with Quantinuum and Tecnologico de Monterrey seeking to develop a framework that allows to help protect blockchain networks from attacks by large and robust quantum computers.
As the paper claims “the advent of quantum computing threatens blockchain protocols and networks because they utilize non-quantum resistant cryptographic algorithms. When quantum computers become robust enough to run Shor’s algorithm on a large scale, the most used asymmetric algorithms, utilized for digital signatures and message encryption, such as RSA, (EC)DSA, and (EC)DH, will be no longer secure. Quantum computers will be able to break them within a short period of time”.
Our work is pioneer in proposing a five-step end-to-end framework applicable to most blockchain networks that does not require critical modifications of the baseline protocols to add a post-quantum cryptographic layer that ensures resistance to attacks by quantum computers. The joint team has also developed a scalable implementation for Ethereum-based networks which has been deployed in LACChain, that uses Hyperledger Besu as the blockchain protocol.
Marcos Allende Lopez, CTO of LACChain and leader of this work claimed that “today the blockchain community is focused on urgent needs such as scalability and interoperability. However, considering that there are trillions of dollars in value stored in blockchain networks and that according to Boston Consulting Group tokenization is expecting to become a $16 trillion market in 2030, it is irresponsible to not have a plan to protect decentralized ledgers from attacks by quantum computers that will be able to discover private keys and steal assets. Despite it is uncertain when large and robust quantum computers will be ready to accomplish that, it is very plausible that these machines are used silently at the beginning for hacking strategically without being spotted.”
Our open-source development presents three alternatives for the blockchain verification of transactions signed with the Falcon-512 NIST-compliant post-quantum signatures: (i) implementing the verification code in Solidity which constitutes – to our knowledge – the first smart contract capable of verifying post-quantum signatures, (ii) implementing solidity instruction in the Solc compiler and corresponding EVM opcode, and (iii) refactoring the EVM opcode Java from the EVM virtual machine into a pre-compiled contract.
The team is now working on an EIP to take this discussion to a broader forum within the Ethereum and Hyperledger communities. LACChain is looking for entities and individuals that want to join us in this mission.
Professor Salvador E. Venegas-Andraca, of Tecnologico de Monterrey, commented: “Quantum technology is a give-and-take discipline: on the one hand, quantum computers together with Shor's algorithm will eventually become a vulnerability to public key cryptography protocols and other technologies used in digital data protection. On the other hand, we can use quantum technology to increase the security of current and future data. The latter is indeed the core of our paper: to use quantum technology to protect current and future blockchains from quantum attacks.”.
Duncan Jones, Head of Cybersecurity at Quantinuum, added: “The most valuable digital assets demand the highest levels of security. By combining quantum-safe algorithms with quantum-computer-hardened keys from our Quantum Origin platform, this work demonstrates a significant security improvement for blockchain systems.”.
About LACChain
LACChain is a global alliance that brings together various stakeholders in the blockchain space, led by the Innovation Lab of the Inter-American Development Bank Group (IDB Lab), with the goal of developing the blockchain ecosystem in Latin America and the Caribbean. Its mission is to accelerate the adoption of blockchain technology in the region, promoting innovation, reducing economic, social, and gender inequalities, improving job quality and security, and fostering financial inclusion, consumer protection, and market integrity. To achieve these goals, LACChain focuses on two main pillars: community and infrastructure. Through its initiatives, LACChain aims to empower people, improve digital security, build trust in the digital economy and society, and foster energy efficiency, all while supporting inclusive growth, well-being, human rights, and fundamental values. For more information about LACChain and its initiatives, please visit their website at www.lacchain.net.
About Tecnologico de Monterrey
Tecnologico de Monterrey was founded in 1943 thanks to the vision of Don Eugenio Garza Sada and a group of entrepreneurs who formed a non-profit association called Enseñanza e Investigación Superior, A. C. Tecnologico de Monterrey is a private, non-profit, independent institution with no political and religious affiliations. The work of Tecnológico de Monterrey on all of its campuses is supported by civil associations made up of a numerous group of outstanding leaders from all over the country who are committed to quality in higher education. Tecnologico de Monterrey is widely recognized as one of the most prestigious universities in Latin America and it ranks among the top 200 universities in the world according to QS World University Rankings.
About Quantinuum
Quantinuum is one of the world’s largest integrated standalone quantum computing companies, formed by the combination of Honeywell Quantum Solutions’ world-leading hardware and Cambridge Quantum’s class-leading middleware and applications. Science-led and enterprise driven, Quantinuum accelerates quantum computing and the development of applications across chemistry, cybersecurity, finance, and optimization. Its focus is to create scalable and commercial quantum solutions to solve the world’s most pressing problems, in fields such as energy, logistics, climate change, and health. The company employs over 480 people including 350 scientists, at nine sites in the US, Europe, and Japan.
About Quantinuum
Quantinuum, the world’s largest integrated quantum company, pioneers powerful quantum computers and advanced software solutions. Quantinuum’s technology drives breakthroughs in materials discovery, cybersecurity, and next-gen quantum AI. With over 500 employees, including 370+ scientists and engineers, Quantinuum leads the quantum computing revolution across continents.
BROOMFIELD, Colo., July 27, 2026 /PRNewswire/ -- Quantinuum Inc. (Nasdaq: QNT) ("Quantinuum") today announced it will release its financial results for the second quarter (ending on June 30, 2026) after market close on August 11, 2026.
Quantinuum will host a conference call at 5:00 PM Eastern time that same day to discuss its financial results. The call will be available through a live webcast here.
An archived replay of the webcast will be made available on the Quantinuum Investor Relations website following the call and will remain available for one year.
About Quantinuum
Quantinuum is a leading quantum computing company offering a full-stack platform designed to make quantum computing deployable in real-world environments. The company has commercially deployed multiple generations of quantum systems built on the well-established QCCD architecture, which it has implemented with novel designs and capabilities to achieve the industry's highest accuracy levels based on average two-qubit gate fidelity as of December 31, 2025. Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets. Quantinuum's headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, Qatar and Singapore.
Media & Investor Contact
Longacre Square Partners and Shub Mukherjee
Broomfield, CO July 22, 2026 — Quantinuum, Inc. (NASDAQ:QNT), a leading quantum computing company, today announced the recent appointments of Robin Schulman as Chief Legal Officer (CLO) and Company Secretary, effective July 13, 2026, and Rory O’Byrne as Chief People Officer (CPO), effective May 26, 2026. Ms. Schulman and Mr. O’Byrne both report to Quantinuum’s President and CEO Rajeeb Hazra.
“As Quantinuum enters an exciting new chapter as a publicly listed company, we are pleased to welcome Robin and Rory to our leadership team," said Dr. Rajeeb Hazra, President and CEO of Quantinuum. “Both Robin and Rory are highly accomplished leaders who bring deep experience guiding technology companies through periods of transformation. Their proven track records of building high-performing organizations and world-class functions will provide an invaluable benefit to Quantinuum as we continue to scale our business and the commercialization of quantum computing accelerates.”
Ms. Schulman joins Quantinuum with more than two decades of legal and executive leadership experience guiding high-growth technology companies through periods of rapid expansion, strategic transformation, and public company evolution, with a track record of translating strategy into execution and building the foundations for sustainable growth. Most recently, Ms. Schulman served as Chief Legal Officer and Head of Corporate Affairs at GitLab, where she spent nearly seven years leading the company's global legal, compliance, policy, competition, intellectual property, corporate development, sustainability and privacy strategy. Prior to that, she was the Chief Legal Officer at Couchbase and New Relic and held senior leadership positions at Adobe Inc.
"Quantinuum sits at a fascinating intersection of groundbreaking science and real-world commercial impact, and I could not be more excited to join the team at this important moment in the company’s journey,” said Robin Schulman, Chief Legal Officer and Company Secretary of Quantinuum. “I look forward to partnering with Raj, our Board, and the leadership team to build a durable foundation that supports Quantinuum’s continued growth and long-term success.”
Mr. O’Byrne brings more than 25 years of global human resources experience leading public and private equity-backed organizations across the technology, energy, mining, and industrial sectors. Most recently, Mr. O’Byrne served as Chief People Officer for Advanced Energy, where he led the company’s human resources team during a period of integration, transformation, and operational expansion. Prior to that, he served as Chief Human Resources Officer for Jonah Energy LLC and Senior Vice President, Global Human Resources at MRC Global.
"I'm thrilled to be joining Quantinuum at such a pivotal moment for the company and for quantum computing more broadly," said Rory O'Byrne, Chief People Officer of Quantinuum. "Having spent my career helping organizations scale through periods of rapid growth, I'm excited to build the people, culture, and infrastructure that will support Quantinuum's next chapter as a public company. It's a rare opportunity to help shape an organization at the forefront of a technology that will define the coming decades."
About Quantinuum
Quantinuum is a leading quantum computing company offering a full-stack platform designed to make quantum computing deployable in real-world environments. The company has commercially deployed multiple generations of trapped-ion based quantum systems built on the well-established QCCD architecture, which it has implemented with novel designs and capabilities to achieve the industry’s highest accuracy levels based on average two-qubit gate fidelity.1 Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets, as well as academic and research institutions globally. The company has a global workforce of approximately 700 employees, including top scientists and researchers. Over 70% of its technology team holds PhDs or Master’s degrees. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, Qatar, and Singapore.
For more information, please visit www.quantinuum.com
Cautionary Statement Concerning Forward-Looking Statements
This press release contains certain statements that may be deemed “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts. The words “anticipate,” “assume,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “future,” “will,” “seek,” “foreseeable,” the negative version of these words, or similar terms and phrases are intended to identify forward-looking statements. Such statements are based on certain assumptions and assessments made by our management in light of their experience and their perception of historical trends, current economic and industry conditions, expected future developments and other factors they believe to be appropriate. The forward-looking statements included in this release are also subject to a number of material risks and uncertainties, including but not limited to economic, competitive, governmental, and technological factors affecting our operations, markets, products, services and prices. New factors emerge from time to time, and it is not possible for Quantinuum to predict all such factors. Any forward-looking statement speaks only as of the date on which it is made, and, except as required by law, Quantinuum does not undertake any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.
1 As of December 31, 2025.
- The companies have published a joint white paper mapping commercially relevant quantum computing use cases in quantum chemistry and graph analytics to Quantinuum’s hardware roadmap.
- The paper provides a framework for assessing how advances in quantum hardware and algorithms could affect when practical industrial applications become feasible.
- SoftBank Corp. and Quantinuum will use the roadmap to inform their exploration of future quantum AI data center services and related business models.
TOKYO and BROOMFIELD, Colo. – Quantinuum (NASDAQ: QNT) and SoftBank Corp. ("SoftBank") today announced the publication of “Quantum Computing Frontiers,” a joint white paper that maps two commercially-relevant quantum computing application areas against Quantinuum’s hardware roadmap. The analysis examines how advances in quantum hardware and algorithms could affect when these applications become practical for industrial use.
Building on this use-case roadmap, the paper also examines how quantum computing, AI, and high-performance computing could be integrated into future computing infrastructure. It considers how progress across successive hardware generations could inform future quantum AI data center services and related business models, a key focus of the Quantinuum and SoftBank partnership announced last year.
“The key takeaway of this study is that organizations do not need to wait for large-scale, fault-tolerant systems to explore where quantum computing can begin creating value,” said Duncan Jones, General Manager, Applications Group at Quantinuum. “By using today’s systems to develop, benchmark and refine applications in areas such as quantum chemistry and graph analytics, enterprises can build the technical and operational readiness needed for the next era of quantum-enabled computing.”
“The question is no longer whether quantum computing may deliver value, but rather which problem classes become executable at which stage of hardware maturity,” said Ryuji Wakikawa, Senior Vice President & CTO at SoftBank Corp. “However, we believe progress in hardware must be complemented by equally strong developments in quantum algorithms and the integration of quantum systems with AI and high-performance computing.”
The white paper discusses illustrative scenarios describing how representative applications, technology maturity, and potential market opportunities may evolve over time under stated assumptions. The analysis provided in the paper is intended to provide a conceptual framework for understanding potential market evolution and does not represent financial guidance or forecasts. These analyses are intended to support discussion of future technology development and should not be interpreted as commitments regarding commercialization, infrastructure investment, products, services, or financial performance.
The full white paper is available to download on the SoftBank and Quantinuum websites.
About SoftBank Corp.
Guided by the SoftBank Group’s corporate philosophy, “Information Revolution – Happiness for everyone,” SoftBank Corp. (TOKYO: 9434) operates telecommunications and IT businesses in Japan and globally. Building on its strong business foundation, SoftBank Corp. is aiming to activate the potential of AI across its businesses and drive implementation in line with its “Activate AI for Society” growth strategy. While further growing its telecom business, SoftBank is expanding its AI computing infrastructure and AI and Cloud service businesses with the aim of becoming a provider of Next-generation Social Infrastructure. To learn more, please visit https://www.softbank.jp/en/corp/
About Quantinuum
Quantinuum (NASDAQ: QNT) is a leading quantum computing company offering a full-stack platform designed to make quantum computing deployable in real-world environments. The company has commercially deployed multiple generations of quantum systems built on the well-established QCCD architecture, which it has implemented with novel designs and capabilities to achieve the industry’s highest accuracy levels based on average two-qubit gate fidelity.1 Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets. The company has a global workforce of approximately 700 employees, including top scientists and researchers. Over 70% of its technology team holds PhDs or Master’s degrees. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, Qatar, and Singapore.
For more information, please visit www.quantinuum.com.
Cautionary Statement Concerning Forward-Looking Statements
This press release contains certain statements that may be deemed “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts. The words “anticipate,” “assume,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “future,” “will,” “seek,” “foreseeable,” the negative version of these words, or similar terms and phrases are intended to identify forward-looking statements. Such statements are based on certain assumptions and assessments made by our management in light of their experience and their perception of historical trends, current economic and industry conditions, expected future developments and other factors they believe to be appropriate. The forward-looking statements included in this release are also subject to a number of material risks and uncertainties, including but not limited to economic, competitive, governmental, and technological factors affecting our operations, markets, products, services and prices. New factors emerge from time to time, and it is not possible for Quantinuum to predict all such factors. Any forward-looking statement speaks only as of the date on which it is made, and, except as required by law, Quantinuum does not undertake any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.
1 As of December 31, 2025.