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, CO, June 5th, 2026 — Quantinuum Inc. (Nasdaq: QNT) (“Quantinuum”) today announced the closing of its upsized initial public offering of 28,000,000 shares of its Class A common stock at an initial public offering price of $60.00 per share. All of the shares were offered by Quantinuum. The aggregate gross proceeds from the offering, before deducting underwriting discounts and commissions and other offering expenses were $1.68 billion. Quantinuum’s Class A common stock is listed on the Nasdaq Global Market under the ticker symbol “QNT.”
J.P. Morgan and Morgan Stanley (in alphabetical order) acted as joint lead active book-running managers for the offering; Jefferies and Evercore ISI also acted as active book-running managers; BofA Securities, UBS Investment Bank, Cantor, Mizuho, Needham & Company, Societe Generale and TD Cowen acted as joint-book running managers; and Craig-Hallum and Rosenblatt acted as co-managers for the offering.
A registration statement relating to this offering was declared effective by the Securities and Exchange Commission (the “SEC”) on June 3, 2026. A prospectus relating to and describing the terms of the offering has been filed with the SEC and is available on the SEC’s website at www.sec.gov. The offering is being made available only by means of a prospectus. Copies of the prospectus may be obtained from: J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717 or by email at prospectus-eq_fi@jpmchase.com and postsalemanualrequests@broadridge.com; Morgan Stanley & Co. LLC, 180 Varick Street, 2nd Floor, New York, New York 10014, Attention: Prospectus Department or by email at prospectus@morganstanley.com; Jefferies LLC, Attn: Equity Syndicate Prospectus Department, 520 Madison Avenue, New York, New York 10022, by telephone at (877) 821-7388 or by email at Prospectus_Department@Jefferies.com; or Evercore Group L.L.C., Attention: Equity Capital Markets, 55 East 52nd Street, 35th Floor, New York, New York 10055, by telephone at 888-474-0200 or by email at ecm.prospectus@evercore.com.
This press release does not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.
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.
Quantinuum:
Quantinuum Investor Relations
investors@quantinuum.com
(855) 888-7686
Broomfield, CO, June 3rd, 2026 – Quantinuum Inc. (“Quantinuum”) today announced the pricing of the upsized initial public offering of 28,000,000 shares of its Class A common stock at a price to the public of $60.00 per share. Quantinuum has granted the underwriters a 30-day option to purchase up to an additional 4,200,000 shares of its Class A common stock to cover over-allotments at the initial public offering price, less underwriting discounts and commissions.
The shares of Class A common stock are expected to begin trading on the Nasdaq Global Market on June 4, 2026 under the ticker symbol “QNT.” The offering is expected to close on June 5, 2026, subject to customary closing conditions.
J.P. Morgan and Morgan Stanley (in alphabetical order) are acting as joint lead active book-running managers for the offering; Jefferies and Evercore ISI are also acting as active book-running managers; BofA Securities, UBS Investment Bank, Cantor, Mizuho, Needham & Company, Societe Generale and TD Cowen are acting as joint-book running managers; and Craig-Hallum and Rosenblatt are acting as co-managers for the offering.
A registration statement relating to this offering was declared effective by the Securities and Exchange Commission on June 3, 2026. The offering is being made available only by means of a prospectus. Copies of the prospectus, when available, may be obtained from: J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717 or by email at prospectus-eq_fi@jpmchase.com and postsalemanualrequests@broadridge.com; Morgan Stanley & Co. LLC, 180 Varick Street, 2nd Floor, New York, New York 10014, Attention: Prospectus Department or by email at prospectus@morganstanley.com; Jefferies LLC, Attn: Equity Syndicate Prospectus Department, 520 Madison Avenue, New York, New York 10022, by telephone at (877) 821-7388 or by email at Prospectus_Department@Jefferies.com; or Evercore Group L.L.C., Attention: Equity Capital Markets, 55 East 52nd Street, 35th Floor, New York, New York 10055, by telephone at 888-474-0200 or by email at ecm.prospectus@evercore.com.
This press release does not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.
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.
Quantinuum:
Quantinuum Investor Relations
investors@quantinuum.com
(855) 888-7686
June 2nd, 2026, Tokyo, Japan — Quantinuum, a leading quantum computing company, announced today that it has signed a non-binding Memorandum of Understanding (MOU) with Mitsubishi Electric Corporation, a recognized global leader in the manufacturing, marketing, and sale of electrical and electronic equipment and systems, to establish a framework for a strategic partnership aiming at accelerating the development of quantum computing applications for advanced industrial engineering and design.
The agreement creates a foundation for the companies to jointly identify high-impact industrial use cases and explore quantum and hybrid quantum-classical approaches for next-generation engineering workflows. Expected initial areas of focus include computer-aided engineering (CAE), such as computational fluid dynamics (CFD), and broader simulation and design applications utilizing logical qubit operations on Quantinuum’s quantum platform.
“We are pleased to begin this collaboration with Mitsubishi Electric as we work toward meaningful quantum utility to industrial engineering,” said Dr. Rajeeb Hazra, President and CEO of Quantinuum. “By combining Quantinuum’s leading quantum computing capabilities with Mitsubishi Electric’s deep engineering expertise, we aim to address some of the world’s most complex design and simulation challenges.”
Under the envisaged partnership, Quantinuum would provide Mitsubishi Electric with access to its high-fidelity trapped-ion quantum systems and expert consultation on quantum algorithm development. Mitsubishi Electric would contribute domain expertise in electromagnetic field analysis, structural analysis, and thermal fluid simulation across a wide range of industrial applications such as factory automation, energy and public utilities, air conditioning, and building systems.
“We are delighted to initiate discussions with Quantinuum to advance a strategic quantum computing partnership under this MOU,” said Mikio Takabayashi, Senior General Manager, Information Technology R&D Center of Mitsubishi Electric. “By integrating manufacturing expertise with digital insights, we aim to evaluate the feasibility and potential applications of quantum technologies in industrial engineering, while generating new ideas and exploring use cases that have the potential to contribute to society and the environment.”
The MOU reflects a shared recognition that near-term engagement with quantum computing may create long-term strategic advantages as the technology continues its advance toward commercial adoption. The companies believe that organizations that act early will be better positioned to help shape use cases, build proprietary expertise and secure intellectual property rights, and help secure access to emerging quantum infrastructure and amid growing demand.
Through the MOU, the companies will evaluate opportunities for future collaboration that have the potential to accelerate technological innovation and create sustained value for global industry.
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.[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 hold 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.
About Mitsubishi Electric Corporation
Guided by its corporate philosophy, Mitsubishi Electric Corporation (TOKYO: 6503) places sustainability at the core of its operations and values stakeholder trust—encompassing society, customers, shareholders and employees. In pursuing profitability, capital efficiency and growth, Mitsubishi Electric works closely alongside customers to develop value-added solutions that address today’s complex challenges while enhancing the company’s sustainable corporate value. Founded in 1921, Mitsubishi Electric has over a century of experience in delivering reliable, high-quality products and solutions. With over 200 group companies and approximately 150,000 employees worldwide, the company is a recognized global leader in manufacturing, marketing and selling electrical and electronic equipment and systems across a broad range of sectors, including public utility systems, energy systems, defense and space systems, factory automation systems, automotive equipment, building systems, air conditioning systems & home products, digital innovations, and semiconductor & devices. Mitsubishi Electric recorded consolidated revenue of 5,894.7 billion yen (U.S.$ 36.8 billion*) in the fiscal year that ended on March 31, 2026. For more information, please visit www.MitsubishiElectric.com
*JPY 160=USD 1, the approximate rate on the Tokyo Foreign Exchange Market on March 31, 2026
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.