Quantum Research for National Security Strategy

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Summary

Quantum research for national security strategy refers to the study and application of quantum technologies—such as computing, communication, and sensing—to safeguard national interests and address new threats in areas like cybersecurity, defense, and infrastructure. As quantum breakthroughs accelerate, governments are prioritizing secure systems, workforce development, and international cooperation to protect sensitive information and maintain competitiveness.

  • Prioritize cryptographic upgrades: Begin transitioning digital infrastructure to quantum-safe cryptography to defend against future threats that could compromise current encryption methods.
  • Support workforce development: Invest in training and education programs to build a skilled talent pool capable of advancing quantum technologies and addressing evolving security needs.
  • Encourage global collaboration: Work with international partners to share research, set standards, and strengthen resilience, recognizing that quantum advancements are too complex for any single country to tackle alone.
Summarized by AI based on LinkedIn member posts
  • View profile for Michal Krelina

    Quantum Security in Defence, Cyber and Space | CTO at QuDef | Researcher at SIPRI

    4,226 followers

    👉 Recently, my work on #quantum #technology and its impacts on international security was published at SIPRI. Here, I would like to highlight my observations and recommendations. I would like to point out the main observations and recommendations, especially covering: 🔸High-resolution magnetic and gravity data sets will become strategic assets 🔸Quantum decryption capabilities may widen intelligence asymmetries between states with different levels of technological advancement 🔸The strategic impact of quantum will depend on its integration with other technologies, not on quantum systems alone 🔸Dual-use quantum development will accelerate and attempts to fully separate civilian and military pathways are unlikely to succeed 🔸National self-sufficiency in quantum technologies is unrealistic—international cooperation is necessary for resilience and innovation 🔸There is a growing need for dedicated institutions to assess the peace and security implications of quantum technologies 🔸Malicious or illicit use of quantum technologies by non-state actors is likely to emerge over time

  • View profile for Keith King

    Former White House Lead Communications Engineer, U.S. Dept of State, and Joint Chiefs of Staff in the Pentagon. Veteran U.S. Navy, Top Secret/SCI Security Clearance. Over 15,000+ direct connections & 42,000+ followers.

    42,727 followers

    Headline: Quantum Threats Extend to Orbit as Space Systems Face Urgent Security Overhaul Introduction: The approaching “Q-Day,” when quantum computers can break current encryption, is no longer theoretical. Experts warn that space systems—long considered secure by distance—are now highly exposed, forcing governments and industry to accelerate a complex transition to post-quantum cryptography. Key Developments: Breaking the Illusion of Space Security Recent cyber incidents, including satellite hacks and data interceptions, prove space is not inherently secure Adversaries can already intercept and store satellite communications for future decryption Threats include spoofing, jamming, command hijacking, and denial-of-service attacks Quantum Race and Strategic Risk U.S. and China are competing to achieve quantum breakthroughs with national security implications Concerns persist that China may gain a first-mover advantage while obscuring progress Q-Day could render current encryption across space and terrestrial systems obsolete Mandated Transition to Post-Quantum Security U.S. policy requires migration to quantum-resistant cryptography under CNSA 2.0 Deadlines: quantum-secure systems by 2035, with major milestones in 2025 and 2027 NIST standardized key algorithms in 2024, enabling immediate transition efforts Operational Challenges in Space Space systems face constraints in size, weight, power, and compute capacity Post-quantum keys are larger, complicating deployment in constrained environments Satellites have long lifecycles, making hardware upgrades difficult or impossible Emerging Solutions and Industry Response Emphasis on crypto agility to enable software-based updates without hardware replacement Manufacturers are embedding post-quantum security directly into hardware and onboard systems New quantum-secure space infrastructure, including routers and communication modules, is under development Immediate Risk Factors “Harvest now, decrypt later” exposes sensitive data already in transit or storage Side-channel attacks and key extraction are already feasible in some scenarios Delay in migration increases long-term exposure and potential mission compromise Why It Matters: Space is now a contested digital domain where encryption integrity underpins national security, economic infrastructure, and military operations. The transition to post-quantum cryptography is not optional—it is a strategic imperative. Organizations that fail to act risk systemic vulnerability across satellite networks that cannot be easily repaired once deployed. The broader implication is clear: future resilience will depend on proactive architecture, crypto agility, and the ability to secure systems against threats that have not fully materialized—but are already inevitable. I share daily insights with tens of thousands followers across defense, tech, and policy. Keith King https://lnkd.in/gHPvUttw

  • View profile for Usman Asif

    Access 2000+ software engineers in your time zone | Founder & CEO at Devsinc

    227,605 followers

    Three weeks ago, our Devsinc security architect, walked into my office with a chilling demonstration. Using quantum simulation software, she showed how RSA-2048 encryption – the same standard protecting billions of transactions daily – could theoretically be cracked in just 24 hours by a sufficiently powerful quantum computer. What took her classical computer billions of years to attempt, quantum algorithms could solve before tomorrow's sunrise. That moment crystallized a truth I've been grappling with: we're not just approaching a technological evolution; we're racing toward a cryptographic apocalypse. The quantum computing market tells a story of inevitable disruption, surging from $1.44 billion in 2025 to an expected $16.22 billion by 2034 – a staggering 30.88% CAGR that signals more than market enthusiasm. Research shows a 17-34% probability that cryptographically relevant quantum computers will exist by 2034, climbing to 79% by 2044. But here's what keeps me awake at night: adversaries are already employing "harvest now, decrypt later" strategies, collecting our encrypted data today to unlock tomorrow. For my fellow CTOs and CIOs: the U.S. National Security Memorandum 10 mandates full migration to post-quantum cryptography by 2035, with some agencies required to transition by 2030. This isn't optional. Ninety-five percent of cybersecurity experts rate quantum's threat to current systems as "very high," yet only 25% of organizations are actively addressing this in their risk management strategies. To the brilliant minds entering our industry: this represents the greatest cybersecurity challenge and opportunity of our generation. While quantum computing promises revolutionary advances in drug discovery, optimization, and AI, it simultaneously threatens the cryptographic foundation of our digital world. The demand for quantum-safe solutions will create entirely new career paths and industries. What moves me most is the democratizing potential of this challenge. Whether you're building solutions in Silicon Valley or Lahore, the quantum threat affects us all equally – and so does the opportunity to solve it. Post-quantum cryptography isn't just about surviving disruption; it's about architecting the secure digital infrastructure that will power humanity's next chapter. The countdown has begun. The question isn't whether quantum will break our current security – it's whether we'll be ready when it does.

  • View profile for Michaela Eichinger, PhD

    Product Solutions Physicist @ Quantum Machines | I talk about quantum computing.

    16,095 followers

    A decade ago, quantum computing was a niche research field. Today, it’s a national security asset. Quantum processors are no longer just being designed in labs—they’re being 𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗲𝗱, 𝗿𝗲𝘀𝘁𝗿𝗶𝗰𝘁𝗲𝗱, 𝗮𝗻𝗱 𝘀𝗮𝗻𝗰𝘁𝗶𝗼𝗻𝗲𝗱. Governments around the world are tightening 𝗲𝘅𝗽𝗼𝗿𝘁 𝗿𝘂𝗹𝗲𝘀, 𝗯𝗹𝗮𝗰𝗸𝗹𝗶𝘀𝘁𝗶𝗻𝗴 𝗰𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀, 𝗮𝗻𝗱 𝗯𝗹𝗼𝗰𝗸𝗶𝗻𝗴 𝗶𝗻𝘃𝗲𝘀𝘁𝗺𝗲𝗻𝘁𝘀 in an attempt to stay ahead in the quantum race. 🔹 𝗧𝗵𝗲 𝗨𝗦 𝗵𝗮𝘀 𝘁𝗶𝗴𝗵𝘁𝗲𝗻𝗲𝗱 𝗶𝘁𝘀 𝗴𝗿𝗶𝗽 with strict export controls on quantum computers, cryogenics, control electronics, and even outbound investments in Chinese quantum firms. Key Chinese quantum institutes are blacklisted, cutting them off from high-end Western components. 🔹 𝗘𝘂𝗿𝗼𝗽𝗲 𝗶𝘀 𝗺𝗼𝘃𝗶𝗻𝗴 𝗶𝗻 𝗹𝗼𝗰𝗸𝘀𝘁𝗲𝗽. Countries like France, Germany, and the UK have added quantum tech to their national export control lists, even ahead of formal EU-wide rules. The UK and Japan have imposed licensing requirements for quantum hardware exports to prevent tech leakage to adversaries. 🔹 𝗖𝗵𝗶𝗻𝗮 𝗶𝘀 𝗽𝗹𝗮𝘆𝗶𝗻𝗴 𝗯𝗼𝘁𝗵 𝗱𝗲𝗳𝗲𝗻𝘀𝗲 𝗮𝗻𝗱 𝗼𝗳𝗳𝗲𝗻𝘀𝗲. On one hand, it's accelerating its self-reliance strategy, pouring billions into domestic quantum R&D to break dependence on Western suppliers. On the other, China is tightening its own export laws—potentially restricting key quantum-related materials and technologies. 🔹 𝗜𝗻𝗱𝗶𝗮 𝗶𝘀 𝗻𝗮𝘃𝗶𝗴𝗮𝘁𝗶𝗻𝗴 𝘁𝗵𝗶𝘀 𝗹𝗮𝗻𝗱𝘀𝗰𝗮𝗽𝗲, aligning with US and EU tech policies to secure access to advanced quantum systems while positioning itself as a key emerging player. 🚨 𝗧𝗵𝗲 𝗯𝗶𝗴 𝗽𝗶𝗰𝘁𝘂𝗿𝗲? Quantum technology is turning into a 𝗴𝗲𝗼𝗽𝗼𝗹𝗶𝘁𝗶𝗰𝗮𝗹 𝗮𝘀𝘀𝗲𝘁, not just a scientific breakthrough. Nations are using export controls, trade agreements, and investment restrictions to shape who leads and who lags. The result? A world where access to quantum hardware is increasingly 𝗱𝗶𝘃𝗶𝗱𝗲𝗱 𝗯𝗲𝘁𝘄𝗲𝗲𝗻 𝗮𝗹𝗹𝗶𝗲𝘀 𝗮𝗻𝗱 𝗮𝗱𝘃𝗲𝗿𝘀𝗮𝗿𝗶𝗲𝘀. As someone deep in this space, I wonder: Are these restrictions necessary to protect national security, or are we risking a fragmented quantum ecosystem?

  • View profile for Prof Dr Ingrid Vasiliu-Feltes

    Quantum-AI Governance Expert I Deep Tech Diplomate I Investor & Tech Sovereignty Architect I Innovation Ecosystem Founder I Strategist I Cyber-Ethicist I Futurist I Board Chair & Advisor I Editor I Vice-Rector I Speaker

    51,535 followers

    National Quantum Strategy Briefing Report Quantum computing has increasingly been recognized by governments as a strategic national capability with far-reaching implications for economic competitiveness, national security, scientific #leadership, and technological #sovereignty. As a result, a growing number of countries have adopted formal national #quantum strategies that converge around five pillars: sustained public investment in quantum #research, pathways for commercialization and scale-up, development of a highly skilled quantum #workforce, protection of critical infrastructure, and alignment with #standards, #cybersecurity, and #governance frameworks. Several advanced economies have already published comprehensive national quantum strategies. #Germany introduced one of the earliest coordinated national approaches and has continued to refine it through updated federal programs. #France launched its national quantum plan in 2021, emphasizing sovereignty, industrial competitiveness, and dual-use applications. The #UnitedKingdom published a 10-year National Quantum Strategy in 2023, integrating research excellence with commercialization and defense priorities. #Canada released its National Quantum Strategy the same year, positioning quantum as a cornerstone of long-term economic growth and innovation. At the supranational level, the European Union adopted the Quantum Europe Strategy, framing quantum technologies as essential to strategic autonomy and future competitiveness. #SouthKorea has similarly advanced a national strategy focused on industrial leadership and global supply-chain positioning. #China, #India, and #Australia have each adopted distinct national approaches to quantum technologies reflecting their economic models and strategic priorities. China embeds quantum development within long-term state planning, emphasizing large-scale public investment, infrastructure build-out, and technological self-reliance across communications, computing, and sensing. India advances quantum computing through its mission-driven National Quantum Mission, which focuses on capacity building, indigenous innovation, workforce development, and strategic applications aligned with national digital initiatives. Australia’s National Quantum Strategy is industry-centric, prioritizing commercialization, talent attraction, research translation, and international collaboration to position the country as a competitive global quantum #innovation hub. The United States recently took a step with a newly issued executive order on quantum technologies, mandating a whole-of-government approach and directing federal agencies to update and operationalize a comprehensive National Quantum Strategy. It emphasizes accelerated deployment of quantum computing, sensing, and networking capabilities; strengthened public–private and allied partnerships; and enhanced coordination across research, #defense, and #energy agencies.

  • View profile for Yusuf Azizullah

    CEO, GBAC – BoardroomEducation.com | WEF-Published Quantum Healthcare & AI Governance Author | Setting the Quantum & AI Boardroom Standard | Board/Audit (NYSE | NASDAQ | TSX | LSE ) | Harvard-Trained | AACSB-Benchmarked

    8,978 followers

    The global quantum computing race just shifted from theoretical physics to sovereign risk. If you sit on a Global 1000 board, direct national defense policy, or deploy tier-one capital, the era of quantum "hype" is officially over. Based on the latest 2025–2026 data, Israel has quietly engineered a highly coordinated "Two-Engine" quantum ecosystem designed for industrial integration and strategic resilience. Here is the executive snapshot of where the capital, the supply chain, and the geopolitics are colliding—and how boards must govern it: 🏗️ 1. The "Two-Engine" Architecture Israel is executing a ruthless, dual-pronged strategy: • Engine 1 (Sovereignty): Hyper-focused on defense superiority, post-quantum cryptography (PQC), and financial resilience. • Engine 2 (Market): Anchored by a massive concentration of multinational R&D centers securing the global supply chain. 💰 2. Strategic Capital Allocation Smart money is no longer trying to build the "race car" (the QPU); it is building the engine and the dashboard. • Public: The Israel National Quantum Initiative (INQI) is deploying a $390M budget. • Private: Capital is flooding the "enabling layers." Quantum Machines raised ~$280M to lead global control systems; Classiq secured massive Series C funding ($173M+) to dominate software synthesis. • Geopolitical: A proposed $200M US-Israel Quantum Fund is advancing for 2026–2030 to counter adversarial tech dominance. ⚓ 3. The Multi-National Anchors You cannot map this sovereign infrastructure without the silicon giants: • Nvidia: Driving the backbone of AI and quantum data center networking. • Intel: Leveraging its massive Kiryat Gat fabrication footprint. • AWS: Designing custom silicon that bleeds directly into quantum control logic. 🏦 4. The Regulatory Shockwave (Directive 364) In January 2025, the Bank of Israel issued Directive 364, requiring banks to map encryption dependencies and submit PQC preparedness plans within one year. This instantly shifted the industry from "theory" to mandatory board-level compliance. 🛡️ 5. The Governance Imperative: The GBAC QSI Overlay With tightening U.S. export controls, the goal is independent technological sovereignty. But how does a global enterprise govern this? Traditional frameworks (COSO, COBIT, ITIL) are failing at the quantum layer. To safely integrate these technologies, organizations must deploy the Quantum Strategic Intelligence (QSI) model. QSI acts as the overarching governance architecture—overlaying sovereign infrastructures like Israel’s—to protect the enterprise from the "Atom to the Algorithm." A question for my network: With central banks now mandating post-quantum preparedness plans, how is your board or agency mapping its cryptographic dependencies? Are you still relying on legacy models? Let's discuss below. 👇 Aviad Tamir, Nir Minerbi, Asif Sinay #QuantumComputing #CorporateGovernance #NationalSecurity #DeepTech #TechStrategy #Geopolitics #PostQuantumCryptography #GBAC #QSI

  • View profile for Steve Suarez®

    Chief Executive Officer | Entrepreneur | Board Member | Senior Advisor McKinsey | Harvard & MIT Alumnus | Ex-HSBC | Ex-Bain

    50,289 followers

    Quantum Computing and Defense: The Next Strategic Frontier Quantum computing presents major implications for future military and defense technology. Based on available public and government data, five nations are leading global investment in quantum research with dual-use (civil and defense) potential: 🇨🇳 China ↳ Estimated $15 billion in national quantum R&D funding ↳ PLA-linked institutes developing quantum communication and sensing ↳ Quantum satellite demonstrations for secure communication ↳ Leads globally in quantum patents and publications 🇺🇸 United States ↳ Multi-billion-dollar investment through the National Quantum Initiative ↳ Coordination across DOE, NSF, DOD, and NIST ↳ Defense projects via DARPA and Air Force Research Lab ↳ Focus on quantum cryptography, simulation, and sensing systems 🇪🇺 European Union ↳ Over €10 billion committed by EU and member states collectively ↳ Quantum Flagship (€1 billion) drives collaborative R&D ↳ Focus on dual-use sensors, communications, and aircraft systems ↳ Partnerships across Germany, France, and the Netherlands 🇬🇧 United Kingdom ↳ £2.5 billion (≈ $3 billion) through the National Quantum Strategy ↳ MOD projects in quantum radar, navigation, and timing ↳ Strong collaboration between government, academia, and industry ↳ Clear pathway toward operational defense applications 🇨🇦 Canada ↳ CAD 360 million through the National Quantum Strategy ↳ Partnerships between universities and the Department of National Defence ↳ Research focused on secure communications and quantum simulation ↳ Active contributor within NATO’s emerging tech discussions These investments reflect each nation's strategic priorities in next-generation defense capabilities. The data shows substantial government commitment across all five countries, with varying approaches to implementation. What trends do you see in your country's technology investments? Share your thoughts on defense technology development ♻️ Repost to help people in your network Follow me for more defense technology analysis

  • View profile for Alex C.
    10,815 followers

    Canada has named quantum a sovereign capability The Defence Industrial Strategy, released today, is an interesting signal for the Canadian quantum sector Quantum computing, quantum communications, and quantum sensors are all explicitly designated as sovereign capabilities, placing them in the highest priority tier for domestic procurement and investment. Sovereign capability designation means the government's new Defence Investment Agency will direct procurements in these areas to Canadian firms as a matter of policy, using the national security exception where needed. The BUILD-first framework is designed to reduce reliance on foreign suppliers and secure domestic ownership of critical IP. The strategy creates multiple pathways quantum companies can access: a $4B BDC Defence Platform for venture capital and loans, $244M through NRC-IRAP for SMBs advancing defence and dual-use technologies, $358M through Regional Development Agencies, BOREALIS (a new defence R&D accelerator with quantum as a named priority), and reformed ITB policies with enhanced multipliers for strategic investments.

  • View profile for Shalini Rao

    Founder & COO at Future Transformation | Trace Circle | Certified Independent Director | Digital Product Passport | ESG | Net Zero | Emerging Technologies | Innovation | Tech for Good |

    7,722 followers

    ⚛️ #𝗜𝗻𝗱𝗶𝗮’𝘀 #𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗠𝗼𝗺𝗲𝗻𝘁 𝗛𝗮𝘀 𝗮 𝗗𝗲𝗮𝗱𝗹𝗶𝗻𝗲: 𝟮𝟬𝟯𝟱 By 2035, quantum technologies are expected to influence $1–2 trillion of global economic value. Over 20 countries already have national quantum missions. More than $40+ billion in public funding has been committed worldwide. Quantum is no longer experimental. It is becoming economic, strategic and geopolitical. This roadmap by NITI Aayog lays out what it will take for India to move from quantum ambition to quantum advantage. 𝗦𝘁𝗮𝘁𝗲 𝗼𝗳 𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗶𝗻 𝟮𝟬𝟯𝟱 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗘𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 • Computing, communication, sensing, materials • Moving from labs to early adoption • Hybrid classical-quantum systems emerging 𝗧𝗵𝗲 𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗦𝘁𝗮𝗰𝗸 • Chips → systems → software → applications • Value created only when the full chain connects 𝗘𝘁𝗵𝗶𝗰𝘀 𝗮𝗻𝗱 𝗚𝗼𝘃𝗲𝗿𝗻𝗮𝗻𝗰𝗲 • Security, export controls, and trust are central • Governance must evolve with capability • Delay creates strategic exposure 𝗩𝗶𝘀𝗶𝗼𝗻 𝗳𝗼𝗿 𝟮𝟬𝟯𝟱 𝗮𝗻𝗱 𝗕𝗲𝘆𝗼𝗻𝗱: 𝗔 𝗤𝘂𝗮𝗻𝘁𝘂𝗺-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 #𝗜𝗻𝗱𝗶𝗮 𝗠𝗶𝗹𝗲𝘀𝘁𝗼𝗻𝗲𝘀 𝗧𝗵𝗮𝘁 𝗠𝗮𝘁𝘁𝗲𝗿 • Talent pipelines at national scale • Indigenous quantum infrastructure • Commercial use cases, not just research wins 𝗚𝗹𝗼𝗯𝗮𝗹 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 • Compete with, not depend on, global players • Shape standards, IP, and supply chains • Export capability, not vulnerability 𝗗𝗶𝘀𝗿𝘂𝗽𝘁𝗶𝗼𝗻𝘀, 𝗜𝗺𝗽𝗮𝗰𝘁 𝗮𝗻𝗱 𝗥𝗶𝘀𝗸𝘀 • Compute limits • Encryption and cybersecurity • Materials discovery and optimisation • Security asymmetry • Talent concentration • Global dependency chains 𝗦𝗲𝗰𝘁𝗼𝗿 𝗪𝗶𝘀𝗲 𝗜𝗺𝗽𝗮𝗰𝘁 • Finance: risk modelling and optimisation • Healthcare: drug discovery and genomics • Energy & climate: simulation and materials • Defence & space: sensing and secure comms 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗥𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱𝗮𝘁𝗶𝗼𝗻𝘀 ✅ Prioritise 3–5 high-impact quantum domains ✅ Align research with national needs ✅ Scale talent fast ✅ Build shared infrastructure ✅ Patient capital for deep tech ✅ Procurement as a catalyst ✅Global collaboration with sovereignty 𝗕𝗼𝘁𝘁𝗼𝗺 𝗟𝗶𝗻𝗲  Quantum has crossed the line from research to national consequence. By 2035, strategic strength will be measured not by experiments run, but by sovereignty secured, ecosystems built, and long-term advantage sustained. 📌 When quantum breaks today’s encryption, will we be ready or reactive? #Quantim #QuantumEconomy #DeepTechIndia #QuantumComputing #FutureOfIndia #TechStrategy #InnovationPolicy #DigitalSovereignty Follow Shalini Rao for more.

  • ⏳ 𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗖𝗼𝗺𝗽𝘂𝘁𝗶𝗻𝗴 𝗮𝗻𝗱 𝗖𝗿𝘆𝗽𝘁𝗼𝗴𝗿𝗮𝗽𝗵𝘆: 𝗧𝗵𝗲 𝗧𝗶𝗺𝗲𝗹𝗶𝗻𝗲 𝗜𝘀 𝗦𝗵𝗿𝗶𝗻𝗸𝗶𝗻𝗴 𝗖𝗹𝗲𝗮𝗿 𝗣𝗮𝘁𝗵 𝘁𝗼 𝗖𝗿𝘆𝗽𝘁𝗮𝗻𝗮𝗹𝘆𝘁𝗶𝗰 𝗥𝗲𝗹𝗲𝘃𝗮𝗻𝗰𝗲 The Bundesamt für Sicherheit in der Informationstechnik (BSI) analysis is clear: Quantum computing is progressing steadily toward cryptanalytic relevance. The technical path is established: fault-tolerant Shor algorithms on superconducting systems with surface codes or ion-based systems with color codes. In 2024, key obstacles were removed. Quantum error correction works. Fault-tolerant computation is real. What remains is large-scale engineering. 𝗪𝗵𝘆 𝘁𝗵𝗲 “𝟮𝟬-𝗬𝗲𝗮𝗿” 𝗡𝗮𝗿𝗿𝗮𝘁𝗶𝘃𝗲 𝗜𝘀 𝗪𝗿𝗼𝗻𝗴 Error-correction break-even across several platforms in 2024–2025 invalidates the claim that relevant quantum computers are always decades away. A conservative estimate now points to around 15 years. This matches observed qubit growth and implies that systems with roughly one million qubits could be available in that timeframe, which is sufficient for cryptographic attacks. 𝗔 𝗦𝘁𝗿𝗮𝗶𝗴𝗵𝘁𝗳𝗼𝗿𝘄𝗮𝗿𝗱 𝗦𝗰𝗮𝗹𝗶𝗻𝗴 𝗧𝗶𝗺𝗲𝗹𝗶𝗻𝗲 The same result emerges from a modular view. Five years to design a scalable platform. Five years to produce and integrate modules. Five years to operate at full scale and quality. This is a scaling problem, not a scientific unknown. 𝗪𝗵𝗮𝘁 𝗖𝗼𝘂𝗹𝗱 𝗦𝗵𝗼𝗿𝘁𝗲𝗻 𝘁𝗵𝗲 𝗧𝗶𝗺𝗲𝗹𝗶𝗻𝗲 Advances in qLDPC codes, error mitigation, and neutral-atom platforms could reduce the horizon further. Ten years is no longer unrealistic. 𝗨𝗻𝗰𝗲𝗿𝘁𝗮𝗶𝗻𝘁𝘆 𝗜𝘀 𝗦𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗮𝗹 Multiple hardware platforms progress in parallel. Companies protect core technology. Some work happens in stealth mode. National security plays a role. A hidden qualitative leap seems unlikely today, but cannot be excluded. 𝗤-𝗗𝗮𝘆 𝗮𝗻𝗱 𝘁𝗵𝗲 𝗛𝗡𝗗𝗟 𝗥𝗶𝘀𝗸 To stay on the safe side, Q-Day planning should assume a horizon of no more than 10 years, especially for nation-state actors and cyber agencies. AI will accelerate engineering, scaling, and cryptanalysis. This increases the risk that Q-Day arrives earlier than expected. The HNDL threat—harvest now, decrypt later—is already active. Sensitive data intercepted today can be decrypted in the future. This affects critical infrastructure, government systems, and industrial communication with long confidentiality lifetimes. Protection must start now. This requires crypto-agile architectures and the early deployment of hybrid schemes combining classical and post-quantum cryptography. 𝗜𝗺𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝗳𝗼𝗿 𝗖𝗿𝘆𝗽𝘁𝗼𝗴𝗿𝗮𝗽𝗵𝗶𝗰 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 Post-quantum migration is no longer optional. Waiting increases risk. 𝗢𝘂𝗿 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗗-𝗦𝘁𝗮𝗰𝗸 We at Spherity assessed these risks and transition paths for the German D-Stack, with a focus on crypto agility and long-term resilience: https://lnkd.in/eTJT4erD

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