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Q-Day Knowledge Center & Q-Day Framework and Estimator

Q-Day Knowledge Center - Your complete guide to understanding, forecasting, and preparing for quantum decryption ...

Quantum Hardware Companies and Roadmaps Comparison

With so many quantum hardware roadmaps landing recently, I’ve updated my running comparison of the ...

Getting Started With Quantum Readiness and PQC Migration

Getting Started With Quantum Readiness and PQC Migration ...

The “Cybersecurity Apocalypse in 2026” and the Jesse–Victor–Gharabaghi (JVG) Algorithm: Why This Claim Doesn’t Hold Up

A preprint manuscript (ID: 202510.1649) titled “A Novel Hybrid Quantum Circuit for Integer Factorization: End-to-End Evaluation in Simulation and Real Quantum Hardware” was published on the Preprints.org server. Authored by researchers ...

Google’s Merkle Tree (MTC) Gambit to Quantum-Proof HTTPS

Google will not put post-quantum signatures into traditional X.509 certificates for Chrome. Instead, the company announced in February 2026 a fundamentally different architecture - Merkle Tree Certificates (MTCs) - that ...

No, the “Pinnacle Architecture” Is Not Bringing Q-Day Closer 2-5 Years (but It Is Credible Research)

Since the preprint paper of The Pinnacle Architecture preprint hit and its Quantum Insider coverage ran, my phone has been ringing off the hook. The question behind most of those calls ...

The EU Just Proposed Including Post-Quantum Cryptography (PQC) in NIS2

On 20 January 2026, the European Commission published COM(2026) 13 final - a proposed directive amending NIS2 as part of a broader cybersecurity simplification package tied to the upcoming Cybersecurity ...

China Just Pushed Device-Independent QKD (DI-QKD) to 100 Kilometres

A team at the University of Science and Technology of China (USTC) published a paper in Science that quietly redrew the map of what device-independent quantum key distribution (DI-QKD) can ...

India’s Task Force Releases Quantum‑Safe Roadmap with 2027–2029 Migration Timeline for CII

India’s Department of Science and Technology (DST) published the “Implementation of Quantum Safe Ecosystem in India – Report of the Task Force.” This report, produced by a national Task Force ...

Hong Kong’s HKMA Launches Quantum Preparedness Index to Safeguard Finance

Hong Kong’s central bank unveils a “Quantum Preparedness Index” to gauge how ready its banks are for the quantum computing era, underscoring a global push among regulators to future-proof financial ...

CISA Draws the Line: The Product Category Advisory & The End of Legacy Procurement

The Cybersecurity and Infrastructure Security Agency (CISA) released a definitive advisory titled "Product Categories for Technologies Use Post-Quantum Cryptography Standards." This document, mandated by Executive Order 14306 (June 2025), fundamentally ...

Citi’s Quantum Threat Report: The Trillion-Dollar Security Race in Focus

The Citi Institute - a research arm of global banking giant Citigroup - published a stark warning titled “Quantum Threat: The Trillion-Dollar Security Race Is On.” In unequivocal terms, Citi’s ...

G7’s Post‑Quantum Roadmap: Preparing the Financial Sector for a Quantum-Resilient Future

The G7 Cyber Expert Group (CEG) - an international team of cybersecurity authorities co-chaired by the U.S. Treasury and the Bank of England - issued a landmark roadmap for the ...

Enterprise PQC Migration: New Study Predicts 5–15+ Year Timelines

A new peer-reviewed study titled "Enterprise Migration to Post-Quantum Cryptography: Timeline Analysis and Strategic Frameworks" by independent researcher Robert Campbell has been published in the open-access journal Computers (MDPI). This ...

Crypto Agility Goes from Buzzword to Blueprint – NIST Releases “Considerations for Achieving Crypto Agility”

NIST published the final version of the Cybersecurity White Paper (CSWP) 39 – “Considerations for Achieving Crypto Agility: Strategies and Practices.” CSWP 39 elevates cryptographic agility from an oft-cited buzzword ...

Marin Ivezic My name is Marin Ivezic. This is my personal blog. I am the Founder of Applied Quantum; former Fortune Global 500 CISO/CTO, Big 4 partner, and APAC & global leader at Accenture and IBM. I served on multiple boards as a NED, and I invest in cutting-edge quantum startups.

My work has always been focused on emerging‑tech risk – building and leading innovation labs focused on quantum security, AI security, and cyber-kinetic risks for global corporations, governments, and defense. I regularly share insights on quantum technologies and emerging‑tech cybersecurity. More about me

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Applied Quantum is the first professional services firm dedicated to quantum technologies across computing, communications, sensing, and simulation. We deliver quantum-focused end-to-end advisory, R&D, and systems integration.

On the security front we execute cryptographic inventories and cryptographic bills of materials (CBOMs), build enterprise crypto agility, plan and deliver PQC migrations and hybrid patterns, and design quantum safe networks (including QKD where warranted), with governance and compliance built in.

The result is a de-risked path from exploration to business outcomes – without hype or lock in.

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My Most Popular Quantum Tech, Quantum Computing, Quantum Security, PQC Articles This Week

    PostQuantum.com AI Explainer

    An AI tool that answers questions using a curated corpus of information from PostQuantum.com, NIST, NSA, and ENISA and other reliable sources. Ask anything related to quantum computing or quantum security.