Quantum Security Risks

Lets Learn #Quantum – Post #16: Post-Quantum Cryptography (PQC) The Invisible Safe: Why Hackers Are Stealing Data They Can't Read Yet The biggest short-term impact of quantum computing isn't what it can create. It is what it can destroy. Right now, our digital world relies on encryption algorithms like RSA to protect banking, emails, and cloud data. Standard supercomputers would take thousands of years to crack them. But quantum computers change the rules. Running Shor’s Algorithm, a quantum computer could break today's encryption in hours. The Threat Happening Right Now Why care today if full-scale quantum computers are still year away? Because cybercriminals are actively executing a strategy known as Harvest Now, Decrypt Later (HNDL). Imagine a thief stealing a locked titanium safe. They cannot open it today, so they hide it in a basement and wait. Years from now, a new tool is invented that pops that safe open instantly. That is HNDL. Bad actors are intercepting and archiving sensitive enterprise data today, waiting for the day a quantum computer can unlock it. If your data needs to remain secret for the next decade, it is already at risk. Enter PQC: Upgrading the Locks Post-Quantum Cryptography (PQC) is the defense. It is a new generation of math shields designed to resist attacks from both conventional and quantum computers. The breakthrough? PQC runs seamlessly on your current servers, smartphones, and cloud platforms. Think of it as swapping out a traditional door lock for a multi-dimensional biometric scanner. The house stays the same; only the lock changes. Instead of traditional math, PQC relies on Lattice-Based Cryptography. Think of it like a maze with thousands of overlapping dimensions instead of two. Even a quantum computer gets completely lost trying to find the exit. The Strategic Reality You cannot swap out the security architecture of a global enterprise overnight. Migrating infrastructure takes years, which is why forward-thinking leaders are already auditing networks and testing PQC algorithms today using a hybrid approach. The quantum threat is not a future IT issue. It is a current strategic risk. The question for leadership is no longer: "When will a quantum computer be built?" The real question is: "Will our data still be secure when it arrives?" #QuantumTechnology #PostQuantumCryptography #PQC #QuantumSecurity #CyberSecurity #QuantumComputing #DigitalTransformation #DataProtection #TechnologyLeadership Co-authored with Atul Tripathi Sundar Ram, Sachin Arora, Himanshu Ghawri, Azizur Rahman, Shivendra singh, Prasun Nandy, Jaydeep Sarkar, Joydeep Roy, Arihant Garg, Amit Kumar, Hetal Shah, Arun Rangaraju, Sayantan Chatterjee, Rajesh Kumar Ojha, Dr. Raghav Manohar Narsalay, Praveen Sasidharan, Sundareshwar K (Sundar), Manu Dwivedi, Venkat Nippani, Himadri Ganguly, Ritesh Jain, Abhijit Chakraborty, Sumit Srivastav, Anit Shanker #soyoucan

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

🗞️ Needed report By CyberArk on a burning issue : identity security. A decisive element that will determine our ability to restore digital trust. 🔹 « Identity is now the primary attack surface. » Defenders must secure every identity — human and machine 🔹 with dynamic privilege controls, automation, and AI-enhanced monitoring 🔹and prepare now for LLM abuse and quantum disruption. Machine identities are the fastest-growing attack surface 🔹Growth outpaces human identities 45:1. 🔹Nearly half of machine identities access sensitive data, yet 2/3of organizations don’t treat them as privileged. Quantum readiness is urgent 🔹Quantum computing will break today’s cryptography (RSA, TLS, identity tokens). 🔹Transition planning to quantum-safe algorithms must start now, even before standards are finalized. Large Language Models include prompt injection, data leakage, and misuse of AI agents. So organizations must treat them as a new class of machine identity requiring monitoring, access controls, and secrets management. 🧰 What can we do? ⚒️ 1/ Implement Zero Standing Privileges (ZSP) • Remove always-on entitlements; grant access dynamically and just-in-time. • Minimize lateral movement by revoking privileges once tasks are complete 👥2/ Secure the full spectrum of identities • Differentiate controls for workforce, IT, developers, and machines. • Prioritize machine identities: vault credentials, rotate secrets, and eliminate hard-coded keys. 🛡️ 3/ Embed intelligent privilege controls • Apply session protection, isolation, and monitoring to high-risk access. • Enforce least privilege on endpoints; block or sandbox unknown apps. • Deploy Identity Threat Detection & Response (ITDR) for continuous monitoring. ♻️ 4/ Automate identity lifecycle management • Use orchestration to onboard, provision, rotate, and deprovision identities at scale. • Relieve staff from manual tasks, counter skill shortages, and improve compliance readiness. 5/ Align security with business and regulatory drivers • Build an “identity fabric” across IAM, PAM, cloud, SaaS, and compliance. • Tie metrics (KPIs, ROI, cyber insurance conditions) to board-level priorities. 6/ Prepare for next-generation threats • Establish AI/LLM security policies: control access, monitor usage, audit logs. • Begin phased adoption of post-quantum cryptography to protect long-lived sensitive data. Enjoy the read

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.

Quantum computing is moving from "science fiction" to "business reality" faster than most predicted. Two recent papers have fundamentally shifted the timeline for when we need to care about Quantum-Safe security: 1️⃣ The "10,000 Qubits" Milestone: New research shows that we can execute Shor’s algorithm—the math that breaks today’s encryption—with far fewer resources than previously thought. By using reconfigurable atomic qubits, the hardware requirements for cracking RSA-2048 have dropped by nearly 20x. 2️⃣ The "9-Minute" Crypto Warning: Google’s latest whitepaper highlights a terrifying reality for digital assets. Under advanced quantum scenarios, the encryption protecting a cryptocurrency wallet could be cracked in under 10 minutes. This puts billions in "dormant" assets at immediate risk of "at-rest" attacks. The Bottom Line: The "Q-Day" window is shrinking. It’s no longer about if a quantum computer can break your encryption, but when your current migration timeline will run out. How do we respond? We can't just flip a switch on "Q-Day." For many organizations, becoming quantum safe is a multi-year journey. This is where Palo Alto Networks Quantum-Safe Security comes in. Instead of a manual, multi-year overhaul, we provide a path to Agentic Resilience: - Continuous Discovery: It automatically maps your "cryptographic bill of materials" (CBOM), identifying exactly where vulnerable RSA and ECC algorithms are hiding in your network. - Risk Prioritization: It correlates your encryption strength with business criticality, telling you exactly which high-value assets need to move to Post-Quantum Cryptography (PQC) first. - Real-Time Remediation: For legacy systems that can’t be easily upgraded, a "Quantum-Safe Proxy" re-encrypts vulnerable traffic into post-quantum algorithms (like ML-KEM) at the network edge. The transition to a quantum-safe future is a marathon, but the starting gun has already fired. Learn how to take your first steps at the link in the comments.

Quantum Threat Accelerates: Encryption May Be Breakable with Far Fewer Qubits New research suggests that the timeline for quantum computers to break widely used encryption methods may be much shorter than previously believed. A recent study indicates that elliptic-curve cryptography, a cornerstone of modern digital security, could potentially be cracked with around 10,000 qubits, a dramatic reduction from earlier estimates of 20 million. This shift is driven by advances in quantum error correction and system architecture. Researchers have demonstrated that non-local communication between qubits can significantly improve fault tolerance, allowing smaller quantum systems to perform complex calculations more reliably. This means that the barrier to executing powerful quantum algorithms, such as those capable of breaking encryption, may be far lower than assumed. The implications are profound for global cybersecurity. Elliptic-curve cryptography underpins everything from secure communications and financial transactions to government and military systems. If quantum machines reach the revised threshold, many of today’s encryption standards could become vulnerable far sooner than anticipated. While current quantum computers remain below this capability, progress in the field is accelerating. The combination of improved qubit quality, scaling efforts, and enhanced error correction suggests that the gap between theory and practical application is narrowing. This creates urgency for organizations to transition toward quantum-resistant cryptographic frameworks. The broader impact is strategic and immediate. Governments, enterprises, and infrastructure operators must begin preparing for a post-quantum security landscape now, rather than reacting after a breakthrough occurs. The emerging reality is clear: quantum computing is not only a technological revolution but also a potential disruption to the very foundations of digital trust. I share daily insights with tens of thousands followers across defense, tech, and policy. If this topic resonates, I invite you to connect and continue the conversation. Keith King https://lnkd.in/gHPvUttw

Is quantum computing the next big cybersecurity threat? For decades, encryption has been our digital fortress. But quantum computing is challenging that foundation—and the stakes couldn’t be higher. Let me explain. Quantum computers, powered by qubits and quantum mechanics, have the potential to break today’s most secure encryption methods in record time. Algorithms like RSA, which protect everything from online transactions to national secrets, may soon become obsolete. Here’s the reality: → "Harvest Now, Decrypt Later": Cybercriminals are already storing encrypted data, waiting for the day quantum computers can crack it. → Encryption at Risk: Shor’s Algorithm and similar quantum innovations could dismantle current security protocols, leaving sensitive information vulnerable. → The Clock is Ticking: While quantum computers aren’t powerful enough yet, experts predict it’s only a matter of time. So, how do we prepare? → Post-Quantum Cryptography: Organizations like NIST are working on quantum-resistant algorithms to protect future data. → Quantum-Safe Protocols: Hybrid models combining classical and quantum encryption are emerging to secure transitions. → Risk Assessments and Training: Companies must identify vulnerabilities and educate cybersecurity teams on the implications of quantum advancements. The future of cybersecurity isn’t just about defending against traditional threats—it’s about staying ahead of quantum possibilities. Are we ready to face the next wave of cyber threats? Let’s discuss. 👇

🚨 NEW PEER-REVIEWED RESEARCH: PQC Migration Timelines Excited to share my latest paper published in MDPI Computers: "Enterprise Migration to Post-Quantum Cryptography: Timeline Analysis and Strategic Frameworks." The transition to Post-Quantum Cryptography (PQC) represents a watershed moment in the history of our digital civilization. Organizations planning for a 3-5 year "upgrade" will fail. The reality is a 10-15-year systemic transformation. Key Contributions: 📊 Realistic Timeline Estimates by Enterprise Size: Small (≤500 employees): 5-7 years Medium (500-5K): 8-12 years Large (>5K): 12-15+ years ⚠️ Critical Finding: With FTQC expected 2028-2033, large enterprises face a 3-5 year vulnerability window—migration may not complete before quantum computers break RSA/ECC. 🔬 Novel Framework Analysis: Causal dependency mapping (HSM certification, partner coordination as critical paths) "Zombie algorithm" maintenance overhead quantified (20-40%) Zero Trust Architecture implications for PQC 💡 Practical Guidance: Crypto-agility frameworks and phased migration strategies for immediate action. Strategic Recommendations for Leadership: 1. Prioritize by Data Value, Not System Criticality: Invert the traditional triage model. Systems protecting long-lived data (IP, PII, Secrets) must migrate first, regardless of their operational uptime criticality, to mitigate SNDL. 2. Fund the "Invisible" Infrastructure: Budget immediately for the expansion of PKI repositories, bandwidth upgrades, and HSM replacements. These are long-lead items that cannot be rushed. 3. Establish a Crypto-Competency Center: Do not rely solely on generalist security staff. Invest in specialized training or retain dedicated PQC counsel to navigate the mathematical and implementation nuances. The talent shortage will only worsen. 4. Demand Vendor Roadmaps: Contractual language must shift. Procurement should require vendors to provide binding roadmaps for PQC support. "We are working on it" is no longer an acceptable answer for critical supply chain partners. 5. Embrace Hybridity: Accept that the future is hybrid. Design architectures that can support dual-stack cryptography indefinitely, viewing it not as a temporary bridge but as a long-term operational state. 6. Implement Automated Discovery: You cannot migrate what you cannot see. Deploy automated cryptographic discovery tools to continuously map the cryptographic posture of the estate, identifying shadow IT and legacy instances that manual surveys miss. The quantum clock is ticking. Start planning NOW. https://lnkd.in/eHZBD-5Y 📄 DOI: https://lnkd.in/ejA9YpsG #PostQuantumCryptography #Cybersecurity #QuantumComputing #PQC #InfoSec #NIST #CryptoAgility

EY’s perspective on securing against #quantum #risks emphasizes that quantum #computing is rapidly evolving from a theoretical concern into a material cybersecurity threat that requires immediate strategic action. The core issue lies in the vulnerability of widely used cryptographic algorithms, such as RSA and elliptic curve cryptography, which could be broken by sufficiently advanced quantum computers. This creates a systemic risk to sensitive data, including financial information, intellectual property, and personal records. A central concept highlighted is the “harvest now, decrypt later” threat model, in which adversaries collect encrypted data today with the intention of decrypting it in the future as quantum capabilities mature. This makes quantum risk a present-day problem, particularly for data requiring long-term confidentiality. EY stresses that organizations must adopt a proactive and structured approach to quantum readiness. A foundational step is to conduct a comprehensive cryptographic inventory, identify sensitive #data, and map existing #encryption methods. This enables organizations to assess which systems are most exposed and prioritize remediation efforts. Transitioning to post-quantum cryptography (PQC) is a complex, multi-year transformation that requires careful planning, integration into existing #technology roadmaps, and alignment with emerging standards. Organizations are encouraged to build crypto-agility, allowing them to adapt encryption methods as technologies and standards evolve. EY also highlights the importance of #governance, #compliance, and #workforce readiness. Quantum resilience requires enterprise-wide coordination, including policy development, regulatory alignment, continuous monitoring, and personnel training. EY frames quantum cybersecurity not just as a technical upgrade but as a strategic #transformation initiative. Organizations that act early can strengthen resilience, improve cyber maturity, and gain a competitive advantage, while those that delay risk long-term exposure to data breaches, regulatory challenges, and erosion of #digital #trust.

Quantum Threat: The First Institutional Signal That the Migration Era Has Begun Citi’s new quantum-risk report is one of the clearest indicators yet that quantum computing has moved from research discussion into the institutional risk stack. The real story is not the technology. It is the transition pressure now forming beneath it. 1. Q-Day is not a future event.   The report is explicit: the primary threat is harvest-now, decrypt-later. Sensitive data across finance, healthcare, government and critical infrastructure may already sit in adversary storage. Migration protects future flows, not historical exposure. 2. The probability window is collapsing.   Citi cites a 19–34% probability of a cryptographically relevant quantum computer by 2034, rising to 60–82% by 2044. Prediction markets are already pricing meaningful capability by 2030. Boards no longer have the luxury of waiting for certainty. 3. PQC is not the challenge. Migration is.   The algorithms exist. The difficulty is deploying them across identity systems, payment rails, industrial control systems, cloud infrastructure, IoT fleets and global trust dependencies. This is not a cryptography refresh. It is a governance transformation. 4. Regulators are no longer signalling. They are scheduling.   US federal procurement mandates, EU transition timelines, defence migration targets and Israel’s banking directives all point in the same direction: quantum readiness is becoming a compliance expectation, not a research exercise. 5. The economic exposure is systemic.   Citi highlights a scenario where a single-day quantum attack affecting a top-five US bank’s Fedwire access could place $2–3.3 trillion of GDP at risk. That is not a cybersecurity incident. It is macroeconomic instability. 6. Blockchains are not exempt.   Bitcoin has roughly 25% of supply already quantum-exposed. Ethereum exceeds 65%. The issue is not the ledger itself, but the signature schemes protecting ownership. 7. The real work is structural.   Inventory, crypto-agility, key lifecycle management, certificate replacement, protocol migration, downgrade resistance, telemetry validation, vendor alignment and assurance mapping. This is the operational boundary of the quantum era. The Citi report matters because it confirms something the industry can no longer avoid: Quantum readiness is becoming a fiduciary obligation. #PQC #QuantumSecurity #Cryptography #Citi