# A practical roadmap for post-quantum cryptography How businesses should prepare for the quantum threat - **Source:** [MIT Technology Review](https://www.technologyreview.com) - **Published:** 2026-08-13 - **Original article:** - **On Brifing:** https://brifing.si/s/b904cd0c-3900-40f4-81f7-c423bda4e980 ## Is the quantum threat real? Quantum computers can break modern encryption, but this isn't an apocalyptic scenario. Experts estimate a 50% probability for cracking 2048-bit RSA by 2040. This timeline allows businesses to prepare. The 'harvest now, decrypt later' strategy poses risks for data requiring over 10 years of confidentiality. Tech giants like Intel are already developing quantum-resistant infrastructure to address this challenge. ## US government's timeline Starting 2027, the US mandates post-quantum cryptography (PQC) for National Security Systems. Full adoption targets 2035 using NIST-standardized CNSA 2.0 algorithms. While not compulsory for commercial entities, this schedule sets industry standards. Organizations can customize this roadmap based on their risk tolerance. The phased approach includes 2031 implementation deadlines for new systems with limited exceptions. ## Intel's technological solutions Intel Xeon 6 processors already feature quantum-safe AES-256 encryption and microcode signing. Future platforms will extend PQC to firmware, device interconnects, and secure boot functions. QuickAssist Technology offloads cryptographic workloads to prevent performance loss. Dedicated accelerators and optimized libraries keep computational overhead manageable, with resource consumption reduced to just 5-10% above traditional methods. ## System-wide compatibility needs Post-quantum security requires more than processor upgrades. SSDs, network cards, operating systems, and applications all need compatibility. Intel collaborates with ecosystem partners for comprehensive transition solutions. This holistic approach proves critical for high-security sectors like finance and healthcare, where data protection regulations are most stringent. End-to-end encryption updates are becoming mandatory rather than optional. ## Phased transition for enterprises 1) View PQC as technical debt reduction. 2) Evaluate vendor roadmaps like Intel's. 3) Map all cryptographic touchpoints. 4) Start with critical system pilots. 5) Train staff on new protocols. This structured approach enables controlled modernization without disruption. According to Intel's data, spreading costs over 5 years keeps annual investment at just 1.5-2% of IT budgets, making the transition financially manageable. ## Algorithm differences Post-quantum algorithms require larger key sizes and different computational approaches, typically consuming 20-30% more resources. Intel's specialized instruction sets and accelerators reduce this overhead to 5-10%. These optimizations maintain service-level agreements during transition periods. Performance-preserving solutions become particularly valuable for latency-sensitive applications like financial transactions or real-time data processing. ## Financial sector vulnerabilities A Global Risk Institute survey of 32 experts identifies finance as highly quantum-vulnerable. Banking transactions, digital signatures, and customer data require long-term protection. Fintech firms tend to adopt NIST standards 2-3 years early. Regulators may require PQC compliance reports starting 2025. Proactive institutions gain both security and competitive advantages in this rapidly evolving landscape. ## Benefits of early adoption Organizations moving early gain security and competitive edges. Crypto modernization improves IT infrastructure sustainability. Intel data shows PQC transition costs represent just 1.5-2% of annual IT budgets when spread over 5 years. Compared to potential data breach costs averaging $4.35 million per incident in 2022, this investment proves strategically sound. Future-proofing encryption also builds customer trust and compliance readiness. ## Sources covering this story - https://www.technologyreview.com/2026/08/13/1141041/building-a-practical-path-to-post-quantum-cryptography/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._