Quantum Computing News, PQC News, Quantum Security News & Commentary

What’s Happening in Quantum — and What It Means

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Deep Dive Series

Long-form research across quantum computing and quantum security

Multi-article series with capstone analyses, interactive tools, and companion databases.

Quantum Systems Integration

Open architecture, modular hardware, and building quantum computers from components


How to Build a Quantum Computer

How to Build a Quantum Computer

Integration guides for assembling quantum computers from modular components. Every major modality covered, from empty lab to first qubit signal, with vendor landscapes and procurement guidance.


What It Takes to Build a Quantum Computer

What It Takes to Build a QC

From qubit fabrication through cryogenics, control electronics, and error correction. A component-level breakdown of the supply chain and engineering challenges at each layer.


Quantum Systems Integration & QOA

Quantum Systems Integration & QOA

The Quantum Open Architecture model and multi-vendor system design. How independent integrators assemble best-of-breed components into working quantum computers.


Quantum Computing Modalities

Quantum Computing Modalities

Superconducting, trapped ion, neutral atom, photonic, silicon spin, and beyond. Every major hardware approach compared on performance, scalability, and commercial readiness.

Quantum Security, PQC Migration & Q-Day

Threat assessment, standards, mandates, migration frameworks, and deadlines


Quantum Computing for Cyber Pros

Quantum Computing for Cyber Pros

An 11-part introduction to quantum computing for security professionals, no physics background required. Amplitudes to Shor, Grover, error correction, and reading vendor roadmaps. Free 114-page ebook included.


CRQC Quantum Capability Framework

CRQC Capability Framework

The nine engineering capabilities required to build a cryptographically relevant quantum computer. The structured, evidence-based method behind my Q-Day estimates.


Predicting Q-Day

Predicting Q-Day

Frameworks, forecasts, and the data behind competing timelines. Includes the interactive CRQC Readiness Benchmark tool for exploring estimates with your own assumptions.


Getting Started With Quantum Security & PQC Migration

Getting Started With Quantum Security

A practitioner’s roadmap from first awareness to active PQC migration. Covers threat assessment, NIST standards, the PQC Migration Framework, and how to build a business case.


Quantum Security Reference

Quantum Security Reference

Essential concepts for security leaders encountering quantum threats for the first time. Algorithms, attack models, and terminology explained without the hype.


PQC Governance: Program Leadership

PQC Governance & Program Leadership

Who leads PQC migration, how boards govern it, how to fund and execute it. A seven-part Deep Dive for CISOs, boards, and transformation leaders.


Global PQC Migration Timelines

Global PQC Migration Timelines

PQC deadlines are now set across 15+ countries. Maps every mandate, tracks where national requirements diverge, and identifies the compliance gaps that catch multinationals off guard.


CNSA 2.0: NSA's Post-Quantum Requirements

CNSA 2.0 Deep Dive

NSA’s post-quantum cryptography requirements decoded. Required algorithms, enforcement timelines, defense contractor compliance, and what CNSA 2.0 means beyond the NSS.


Quantum Threat to Cryptocurrencies

Quantum Threat to Cryptocurrencies

Ten-article series covering quantum resource estimates for breaking Bitcoin and Ethereum, protocol-level fixes, governance bottlenecks, and realistic migration roadmaps.

More Deep Dives


Quantum Sovereignty

Quantum Sovereignty

Strategic independence in the quantum era. Supply chain dependencies, export controls, and why national quantum strategies are reshaping technology geopolitics.


The Quantum Utility Map

The Quantum Utility Map

What will fault-tolerant quantum computers actually do? Application areas mapped by qubit requirements, timeline to viability, and projected economic impact.


China's Quantum Ambition

China’s Quantum Ambition

Could Beijing win the quantum race? China’s national programs, research output, industrial ecosystem, and the strategic implications for the West.


Quantum Computing Companies & Roadmaps

Quantum Computing Companies

60+ quantum hardware companies profiled and compared across modalities, funding, technical milestones, and commercial readiness. Updated quarterly.


Quantum Snake Oil Dictionary

Quantum Snake Oil Dictionary

A field guide to quantum hype, scams, and misused terminology. Spot exaggerated claims, decode marketing language, and separate real progress from noise.

Articles & Analysis

Quantum Computing, Quantum Security, PQC & Quantum Sovereignty

Chemical Plant Cyber-Kinetic
Cyber-Kinetic Security

Digital Actions, Lethal Consequences: A Cyber-Kinetic Risk Primer

Our physical world is becoming more connected – which makes it more dependent on the cyber world. Many physical objects around us are no longer just physical, but extend into cyberspace, being remotely monitored and controlled. Consider the power plant ...
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Quantum-Switzerland
Quantum ComputingQuantum Policies

Quantum Technologies and Quantum Computing in Switzerland

Switzerland’s quantum technology ecosystem exemplifies how a combination of academic excellence, proactive government support, and innovative entrepreneurship can make a country a major player in the second quantum revolution. In the span of two decades, Switzerland has built a world-class ...
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Saudi Arabia KSA Cyber-Kinetic
Cyber-Kinetic SecuritySociety 5.0

Fortifying the Future: Cyber-Kinetic Risks in Kingdom of Saudi Arabia’s (KSA) Technological Zeitgeist

To fortify its cyber-kinetic defenses in line with growing digital transformation and infrastructural expansions, Saudi Arabia must adopt a multi-layered approach that encompasses regulation, technology, and human capital. To this end, the Kingdom has already embarked on a comprehensive strategy ...
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4,099 Qubits Quantum RSA Shor
Post-Quantum, PQC, Quantum SecurityQ-Day

4,099 Qubits: The Myth and Reality of Breaking RSA-2048 with Quantum Computers

4,099 is the widely cited number of quantum bits one would need to factor a 2048-bit RSA key using Shor’s algorithm – in other words, the notional threshold at which a quantum computer could crack one of today’s most common ...
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Telecom PQC Quantum Challenges
Getting Started With Quantum Security & PQCPost-Quantum, PQC, Quantum Security

Telecom’s Quantum‑Safe Imperative: Challenges in Adopting Post‑Quantum Cryptography

The race is on to quantum‑proof the world’s telecom networks. With cryptographically relevant quantum computers (CRQC) projected to arrive by the 2030s, global communications providers face an urgent mandate to upgrade their security foundations. Today’s mobile and fixed‑line networks rely ...
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AI ASI Creativity Théâtre D’opéra Spatial
AI Security

Creativity is Not as Uniquely Humans as We Think

For years, creativity has been held up as the last bastion of human uniqueness. A mysterious force that AI could never replicate. Our moat against AI. A defining trait that would forever separate human minds from silicon brains. The idea ...
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Quantum Repeaters
Quantum Networks

Quantum Repeaters: The Key to Long-Distance Quantum Comms

Quantum repeaters are specialized devices in quantum communication networks designed to extend the distance over which quantum information (qubits) can be sent without being lost or corrupted​. They tackle a fundamental challenge: photons carrying qubits tend to get absorbed or ...
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Quantum Computing Quantum Technology United Kingdom UK
Quantum ComputingQuantum Policies

Quantum Technologies & Quantum Computing in the UK

The United Kingdom’s quantum technology initiatives have moved from foundational research into a phase of delivery and implementation. The country’s comprehensive approach – supporting research excellence, investing in infrastructure and industry collaboration, and aligning with national goals in security and ...
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DiVincenzo Quantum Computing Criteria
Quantum Computing

The DiVincenzo Criteria: Blueprint for Building a Quantum Computer

Quantum computing promises to revolutionize fields from cybersecurity to drug discovery, but building a functional quantum computer is an immense technical challenge. In the late 1990s, physicist David DiVincenzo outlined a set of conditions - now known as DiVincenzo’s criteria ...
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Entanglement-as-a-Service EAAS
Quantum Networks

What is Entanglement-as-a-Service (EaaS)?

Entanglement-as-a-Service is transitioning from a fascinating concept to a nascent reality. Its technical foundations are solidly rooted in quantum physics, its current development is accelerating through global research efforts, and its promise has caught the attention of the telecommunications industry ...
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Cryptocurrencies Bitcoin Quantum Computing
Crypto SecurityPost-Quantum, PQC, Quantum Security

Quantum Computing Risks to Cryptocurrencies – Bitcoin, Ethereum, and Beyond

Cryptocurrencies like Bitcoin and Ethereum derive their security from cryptographic algorithms – mathematical puzzles that are practically impossible for classical computers to solve in any reasonable time. However, the emergence of quantum computing threatens this security assumption. Unlike classical machines, ...
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Quantum Navigation Sensing Sovereignty
Quantum SensingQuantum Sovereignty

Quantum Sensing and Navigation as Sovereignty

Quantum sensing leverages quantum phenomena (entanglement, superposition, etc.) to achieve measurement precision beyond classical limits. Importantly, many quantum sensors are nearing deployable maturity, unlike quantum computers that remain experimental. Atomic clocks, quantum optical gyroscopes, gravity sensors and the like are ...
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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.

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