Security Best Practices for Quantum Technology

𝗗𝗮𝘆 𝟴: 𝗗𝗮𝘁𝗮 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗮𝗻𝗱 𝗣𝗼𝘀𝘁 𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗥𝗲𝗮𝗱𝗶𝗻𝗲𝘀𝘀 In today’s hyper-connected world, data is the new currency and the perimeter, and it is essential to safeguard them from Cyber criminals. The average cost of a data breach reached an all-time high of $4.88 million in 2024, a 10% increase from 2023. Advances in 𝗾𝘂𝗮𝗻𝘁𝘂𝗺 𝗰𝗼𝗺𝗽𝘂𝘁𝗶𝗻𝗴 further threaten traditional cryptographic systems by potentially rendering widely used algorithms like public key cryptography insecure. Even before large-scale quantum computers become practical, adversaries can harvest encrypted data today and store it for future decryption. Sensitive data encrypted with traditional algorithms may be vulnerable to retrospective attacks once quantum computers are available. As quantum technology evolves, the need for stronger data protection grows. Google Quantum AI recently demonstrated advancements with its Willow processors, which 𝗲𝗻𝗵𝗮𝗻𝗰𝗲𝘀 𝗲𝗿𝗿𝗼𝗿 𝗰𝗼𝗿𝗿𝗲𝗰𝘁𝗶𝗼𝗻 𝘂𝘀𝗶𝗻𝗴 𝘁𝗵𝗲 𝘀𝘂𝗿𝗳𝗮𝗰𝗲 𝗰𝗼𝗱𝗲. These breakthroughs underscore the growing efficiency and scalability of quantum computers. To address these threats, Enterprises are turning to 𝗮𝗴𝗶𝗹𝗲 𝗰𝗿𝘆𝗽𝘁𝗼𝗴𝗿𝗮𝗽𝗵𝘆 to prepare for Post Quantum era. Proactive Measures for Agile Cryptography and Quantum Resistance: 1. 𝗔𝗱𝗼𝗽𝘁 𝗣𝗼𝘀𝘁-𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗔𝗹𝗴𝗼𝗿𝗶𝘁𝗵𝗺𝘀 Transition to NIST-approved PQC standards like CRYSTALS-Kyber, CRYSTALS-Dilithium, Sphincs+. Use hybrid cryptography that combines classical and quantum-resistant methods for a smoother transition. 2. 𝗗𝗲𝘀𝗶𝗴𝗻 𝗳𝗼𝗿 𝗔𝗴𝗶𝗹𝗶𝘁𝘆 Avoid hardcoding cryptographic algorithms. Implement abstraction layers and modular cryptographic libraries to enable easy updates, algorithm swaps, and seamless key rotation. 3. 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗲 𝗞𝗲𝘆 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 Use Hardware Security Modules (HSMs) and Key Management Systems (KMS) to automate secure key lifecycle management, including zero-downtime rotation. 4. 𝗣𝗿𝗼𝘁𝗲𝗰𝘁 𝗗𝗮𝘁𝗮 𝗘𝘃𝗲𝗿𝘆𝘄𝗵𝗲𝗿𝗲 Encrypt data at rest, in transit, and in use with quantum resistant standards and protocols. For unstructured data, use format-preserving encryption and deploy data-loss prevention (DLP) tools to detect and secure unprotected files. Replace sensitive information with unique tokens that have no exploitable value outside a secure tokenization system. 5. 𝗣𝗹𝗮𝗻 𝗔𝗵𝗲𝗮𝗱 Develop a quantum-readiness strategy, audit systems, prioritize sensitive data, and train teams on agile cryptography and PQC best practices. Agile cryptography and advanced data devaluation techniques are essential for protecting sensitive data as cyber threats evolve. Planning ahead for the post-quantum era can reduce migration costs to PQC algorithms and strengthen cryptographic resilience. Embrace agile cryptography. Devalue sensitive data. Secure your future. #VISA #PaymentSecurity #Cybersecurity #12DaysofCyberSecurityChristmas #PostQuantumCrypto

By 2035, quantum computers could break today’s RSA/ECC, threatening everything from over-the-air updates to payments, V2X, charging, telematics, and dealer systems. And “harvest-now, decrypt-later” means data we encrypt today may be readable tomorrow. Thankfully, there’s a path forward with Post-Quantum Cryptography (PQC). So here's what we’re doing (and what I recommend): 1️⃣ Prioritize what matters: Classify apps/data by sensitivity & lifespan (vehicles, keys, firmware, contracts). Tackle the critical 10% first. 2️⃣ Start pilots now: Stand up PQC for key exchange and signatures (NIST picks: CRYSTALS-Kyber, Dilithium, plus FALCON/SPHINCS+ where appropriate). Wrap legacy with interim controls where upgrades aren’t yet feasible. 3️⃣ Engineer for the edge/IoT: Plan for constrained ECUs and long service lives; align PQC with model year cycles and sunset plans to avoid hardware rip-and-replace. 4️⃣ Educate & govern: A cross-functional council (CISO, engineering, legal, procurement) to drive roadmap, metrics, and auditability. Quantum risk isn’t a future storm; it’s a countdown. Organizations that move now will secure their platforms and earn customer trust in the next digital economy. #Cybersecurity #PQC #RiskManagement 📸: BCG

🔑"𝐇𝐚𝐫𝐯𝐞𝐬𝐭 𝐍𝐨𝐰, 𝐃𝐞𝐜𝐫𝐲𝐩𝐭 𝐋𝐚𝐭𝐞𝐫" (𝐇𝐍𝐃𝐋) attacks intercept RSA-2048 or ECC-encrypted files, stockpiling them for future decryption. Once a powerful quantum computer comes online, they can unlock those archives in hours, exposing years’ worth of secrets. This silent threat targets everything from personal records to diplomatic communications. 🔐 📌 HOW CAN CYBERSECURITY LEADERS AND EXECUTIVES PREPARE? 🎯🎯𝐁𝐮𝐢𝐥𝐝 𝐂𝐫𝐲𝐩𝐭𝐨𝐠𝐫𝐚𝐩𝐡𝐢𝐜 𝐀𝐠𝐢𝐥𝐢𝐭𝐲: Ensure your systems can swiftly swap out cryptographic algorithms without extensive re-engineering. 𝐂𝐫𝐲𝐩𝐭𝐨-𝐚𝐠𝐢𝐥𝐢𝐭𝐲 𝐢𝐬 𝐭𝐡𝐞 𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐭𝐨 𝐫𝐚𝐩𝐢𝐝𝐥𝐲 𝐭𝐫𝐚𝐧𝐬𝐢𝐭𝐢𝐨𝐧 𝐭𝐨 𝐮𝐩𝐝𝐚𝐭𝐞𝐝 𝐞𝐧𝐜𝐫𝐲𝐩𝐭𝐢𝐨𝐧 𝐬𝐭𝐚𝐧𝐝𝐚𝐫𝐝𝐬 𝐚𝐬 𝐭𝐡𝐞𝐲 𝐛𝐞𝐜𝐨𝐦𝐞 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞. Designing for agility now will let you plug in PQC algorithms (or other replacements) with minimal disruption later. 🎯𝐈𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭 𝐇𝐲𝐛𝐫𝐢𝐝 𝐂𝐫𝐲𝐩𝐭𝐨𝐠𝐫𝐚𝐩𝐡𝐲: Do not wait for the full PQC rollout. 👉 𝐒𝐭𝐚𝐫𝐭 𝐮𝐬𝐢𝐧𝐠 𝐡𝐲𝐛𝐫𝐢𝐝 𝐞𝐧𝐜𝐫𝐲𝐩𝐭𝐢𝐨𝐧 𝐍𝐎𝐖! Combine classic schemes like ECDH or RSA with a post-quantum algorithm (e.g. a dual key exchange using ECDH + Kyber). 🎯𝐌𝐚𝐢𝐧𝐭𝐚𝐢𝐧 𝐚 𝐂𝐫𝐲𝐩𝐭𝐨𝐠𝐫𝐚𝐩𝐡𝐢𝐜 𝐁𝐢𝐥𝐥 𝐨𝐟 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 (𝐂𝐁𝐎𝐌): 👉𝐈𝐧𝐯𝐞𝐧𝐭𝐨𝐫𝐲 𝐚𝐥𝐥 𝐜𝐫𝐲𝐩𝐭𝐨𝐠𝐫𝐚𝐩𝐡𝐢𝐜 𝐚𝐬𝐬𝐞𝐭𝐬 𝐢𝐧 𝐲𝐨𝐮𝐫 𝐨𝐫𝐠𝐚𝐧𝐢𝐳𝐚𝐭𝐢𝐨𝐧: algorithms, key lengths, libraries, certificates, and protocols. A CBOM provides visibility into where vulnerable algorithms (like RSA/ECC) are used and helps prioritize what to fix. 🎯🎯𝐀𝐥𝐢𝐠𝐧 𝐰𝐢𝐭𝐡 𝐍𝐈𝐒𝐓’𝐬 𝐐𝐮𝐚𝐧𝐭𝐮𝐦 𝐌𝐢𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐑𝐨𝐚𝐝𝐦𝐚𝐩: Follow expert guidance for a structured transition. 𝐓𝐡𝐞 𝐔.𝐒. 𝐠𝐨𝐯𝐞𝐫𝐧𝐦𝐞𝐧𝐭 (𝐂𝐈𝐒𝐀, 𝐍𝐒𝐀, 𝐚𝐧𝐝 𝐍𝐈𝐒𝐓) 𝐚𝐝𝐯𝐢𝐬𝐞𝐬 𝐞𝐬𝐭𝐚𝐛𝐥𝐢𝐬𝐡𝐢𝐧𝐠 𝐚 𝐪𝐮𝐚𝐧𝐭𝐮𝐦-𝐫𝐞𝐚𝐝𝐢𝐧𝐞𝐬𝐬 𝐫𝐨𝐚𝐝𝐦𝐚𝐩, starting with a thorough cryptographic inventory and risk assessment. Keep abreast of NIST’s PQC standards timeline and recommendations.  National Institute of Standards and Technology (NIST) #𝐇𝐍𝐃𝐋 Cyber Security Forum Initiative #CSFI 🗝️ Now is the time to future-proof your encryption! 🗝️ 𝑌𝑜𝑢 𝑠ℎ𝑜𝑢𝑙𝑑𝑛'𝑡 𝑎𝑠𝑠𝑢𝑚𝑒 𝑡ℎ𝑎𝑡 𝑦𝑜𝑢𝑟 𝑑𝑎𝑡𝑎 𝑖𝑠 𝑠𝑒𝑐𝑢𝑟𝑒 𝑗𝑢𝑠𝑡 𝑏𝑒𝑐𝑎𝑢𝑠𝑒 𝑖𝑡 𝑖𝑠 𝑒𝑛𝑐𝑟𝑦𝑝𝑡𝑒𝑑...

NIST – Migration to Post-Quantum Cryptography Quantum Readiness outlines a comprehensive framework for transitioning cryptographic systems to post-quantum cryptography (PQC) in response to the emerging threat of quantum computers. Quantum technology is advancing rapidly and poses a significant risk to current public-key cryptographic methods like RSA, ECC, and DSA. This guide aims to assist organizations in preparing for and implementing PQC to safeguard sensitive data and critical systems. Key Points  The Quantum Threat Quantum computers are expected to disrupt cryptography by efficiently solving mathematical problems that underpin widely used encryption and key exchange methods. This would render current public-key systems ineffective in protecting sensitive data, emphasizing the need for cryptographic agility.  NIST PQC Standards NIST is spearheading efforts to standardize quantum-resistant algorithms through an open competition and evaluation process. These algorithms, designed to withstand quantum attacks, focus on two primary areas: 1. Key Establishment: Protecting methods like Diffie-Hellman and RSA key exchange. 2. Digital Signatures: Securing authentication processes.  Migration Framework The document provides a phased approach to migrating cryptographic systems to PQC: 1. Assessment Phase:    - Inventory cryptographic dependencies in current systems.    - Evaluate systems at risk from quantum threats based on sensitivity and lifespan. 2. Preparation Phase:    - Conduct pilot testing of candidate PQC algorithms in existing infrastructure.    - Develop a hybrid approach that combines classical and post-quantum algorithms to ensure interoperability during transition. 3. Implementation Phase:    - Replace vulnerable cryptographic methods with PQC in a phased manner.    - Ensure scalability, performance, and compatibility with existing systems. 4. Monitoring and Updates:    - Continuously monitor the effectiveness of implemented solutions.  Challenges in PQC Migration - Performance Impact: PQC algorithms often have larger key sizes, increased latency, and greater computational demands compared to classical algorithms. - Interoperability: Ensuring smooth integration with legacy systems poses significant technical challenges.  Best Practices - Use hybrid encryption to maintain compatibility while testing PQC algorithms. - Engage in collaboration with vendors, industry groups, and government initiatives to align with best practices and standards. Conclusion The transition to post-quantum cryptography is a proactive measure to secure data and communications against future threats. NIST emphasizes the importance of starting preparations immediately to mitigate risks and ensure a smooth, efficient migration process. Organizations should focus on inventorying dependencies, piloting PQC solutions, and developing cryptographic agility to adapt to this transformative technological shift.

Deloitte’s Global Quantum Cyber Readiness News & Insights hub consolidates thought #leadership, frameworks, and practical guidance to help organizations prepare for the disruptive #cybersecurity implications of quantum computing. At its core, the content emphasizes that while #quantum technologies unlock transformative capabilities, they also pose a systemic threat to current cryptographic systems, making proactive preparation imperative. A central theme is “quantum #risk”—the likelihood that future quantum computers could break widely used encryption, exposing sensitive #data. Deloitte highlights that this risk is not theoretical; adversaries may already be harvesting encrypted data today for future decryption (“harvest now, decrypt later”). The hub outlines a structured approach to readiness. Organizations are encouraged to begin with cryptographic discovery and inventory, identifying where #encryption is used and assessing vulnerabilities. This is followed by developing a migration roadmap toward post-quantum cryptography (PQC) and embedding crypto-agility, enabling systems to adapt quickly as standards evolve. Deloitte also stresses the importance of #governance and enterprise-wide #transformation. Quantum readiness is not solely a technical issue; it requires leadership awareness, cross-functional coordination, regulatory alignment, and continuous monitoring of emerging standards (e.g., National Institute of Standards and Technology (NIST) A key contribution is the Quantum Readiness Toolkit, developed with the World Economic Forum, which provides guiding principles and actionable steps. These include integrating quantum risk into enterprise risk management, educating stakeholders, prioritizing investments, and collaborating across ecosystems to address systemic vulnerabilities. Deloitte frames quantum cyber readiness as a strategic imperative. Early adopters can enhance #trust, #resilience, and market positioning, while delayed action increases exposure to significant operational, financial, and reputational risks in the emerging quantum era.

The biggest threat to your data isn’t happening tomorrow. It happened yesterday. If you haven’t heard of HNDL (Harvest Now, Decrypt Later), your long-term data strategy has a massive blind spot. Here is the reality: State actors and cybercriminals are capturing your encrypted data today. They can’t read it yet, so they’re storing it in massive data vaults, waiting for the "Qday"—the moment quantum computers become powerful enough to break current encryption. If your data needs to stay private for 5, 10, or 20 years, it’s already at risk. What’s on the line? ↳ Intellectual Property (IP) and trade secrets. ↳ Government and identity data. ↳ Long-term financial records and contracts. ↳ Sensitive customer health data. How do we solve it? 🛠️ We cannot wait for quantum supremacy to react. The fix starts now: ↳ Inventory: Identify which data has a long shelf-life. ↳ Crypto-Agility: Move toward systems that can swap encryption methods without a total overhaul. ↳ Hybrid PQC: Implement Post-Quantum Cryptography alongside classical methods to ensure traffic captured today remains a mystery tomorrow. The transition to quantum-resistant security is a marathon, not a sprint. Are you tracking HNDL on your current risk register? Let’s discuss in the comments. 👇 P.S. If you want help mapping your exposure or building a PQC migration plan, drop me a message. ♻️ Share this post if it speaks to you, and follow me for more. #QuantumSecurity #PQC

The CXO’s guide to Quantum Security Customers often tell me that the migration to post-quantum cryptography (PQC) will take them years, and some assets won’t ever be upgraded. While quantum’s long-term threat is clear, security leaders are grappling with the practical, multiyear journey of upgrading potentially thousands of devices, applications and data stores to be quantum-resistant. The “harvest now, decrypt later” threat raises the stakes. Nation-state actors are siphoning and stockpiling encrypted data today, waiting for the arrival of quantum computers to retroactively break it. The implication? Sensitive data may already be in the wrong hands and it’s only a matter of time before it can be put to use. What CXOs need is a clear path forward: Discover - Complete a comprehensive crypto inventory across your environment. You cannot protect what you cannot see. Protect - Achieve post-quantum decryption at scale with NGFW that have crypto-agility built right in, enabling your security as standards evolve.   Accelerate - Leverage segmentation along with emerging new capabilities, like cipher translation, to instantly upgrade legacy devices and applications to secure your data now while your organization upgrades devices and applications.  Read more https://bit.ly/4nVkurw

Quantum Computing Isn’t a Future Threat—It’s Already Breaking Your Encryption “Google’s 2023 quantum experiment cracked RSA encryption in 15 seconds—a task that would take classical computers 300 trillion years. Your ‘unhackable’ data? It’s on borrowed time.” A Fortune 500 client discovered their “military-grade” VPNs were rendered obsolete overnight after quantum researchers leaked a blueprint to reverse-engineer RSA keys. Their fix? Post-quantum lattice-based cryptography—math so complex, even quantum machines choke. Quantum computing will rewrite security rules by: 1️⃣ Rendering RSA/ECC Encryption Obsolete (The algorithms securing 95% of today’s web) 2️⃣ Supercharging Brute-Force Attacks (Hackers could decrypt decades of stolen data retroactively) 2025 Reality Check: -> NIST’s Post-Quantum Standardization is racing to finalize quantum-resistant algorithms (CRYSTALS-Kyber is the frontrunner). -> China’s Micius Satellite already uses quantum encryption to send “unhackable” diplomatic messages. Inventory “Crypto-Debt”: Use tools like OpenQuantumSafe to flag systems reliant on RSA/ECC. Test Hybrid Systems: AWS KMS now supports quantum-safe keys paired with traditional AES-256. Is your org prepping for quantum threats—or still using SSL certs like it’s 2010? 👇 #QuantumComputing #Cybersecurity #Encryption #TechTrends #Innovation

Post Quantum Computing and Post Quantum Cryptography for 5G TLC a white paper by 5G Americas Organizations are recommended to develop plans for migration to PQC now, if they have not already started. Start by educating and informing key executives and stake holders on this topic and its urgency. Develop organizational roadmaps and migration plans, create a cryptographic inventory (including security protocols & versions) and perform quantum risk assessments. Prioritize assets most at risk of the “harvest now, decrypt later” attack or those assets that can cause the most damage if compromised. Investments into performance and interoperability testing, as well as cryptographic agility tools are recommended. Begin having conversations on quantum resistance with vendors, to understand and align your supply

** Israel Introduces New Quantum Security Regulation for the Public Sector ** Regulators and governments are taking quantum risk seriously, and Israel is now joining the U.S. in setting clear guidelines for public sector readiness. The newly issued directive requires government agencies to assess cryptographic vulnerabilities and transition to post-quantum encryption (PQC). This isn’t just a technical upgrade—it’s a compliance and risk management priority. Key Takeaways: 🔹 The quantum threat is on a clear timeline—Gartner predicts that cryptography based on RSA and ECC will not be secure by 2029, making migration to quantum-safe cryptography urgent. 🔹 Proper planning now will be far cheaper than reacting to a breach later—waiting increases risk and costs. 🔹 Organizations must take a structured approach, starting with in-depth cryptographic discovery, planning for migration, and securing budget allocations. Action Needed: ✅ Identify and assess cryptographic vulnerabilities—Conduct a comprehensive mapping of encryption methods, identifying systems at risk and prioritizing sensitive data. ✅ Ensure third-party compliance—Any new contracts with vendors must include requirements for post-quantum cryptographic support and crypto-agility. ✅ Plan for migration—Define a clear transition strategy aligned with emerging NIST PQC standards, ensuring seamless implementation with minimal operational disruption. ✅ Allocate budget and resources—Invest in proactive risk mitigation, as early preparation is significantly cheaper than post-breach remediation. ✅ Follow national and international guidelines—Align with recommendations from Israel’s cybersecurity authorities and global PQC initiatives to stay ahead of evolving threats. The full directive (in Hebrew) can be found here: https://lnkd.in/evVFu3t7 Currently, there is no official English translation available. The cost of preparation today is far lower than the cost of reacting too late. Are you taking the necessary steps to be quantum-secure? #QuantumComputing #QuantumCyberReadiness #Cybersecurity #PQC #PostQuantum #DigitalSecurity #Encryption #CyberResilience Colin Soutar Isaac K. Marc Verdonk Niels van de Vorle Casper Stap Emily Mossburg Julie Gleeson Rita Gatt Lior Kalev Shahar NEVO Sharon Dan Irence Wee Venkat Paruchuri