Quantum Computing for CISOs Who Don't Have a Physics Background
You do not need to understand quantum mechanics to do this part of your job well. You need four facts, held precisely, and one concept that changes…
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Insights & News
Expert analysis, quantum security news, and industry developments from QSECDEF. 236 articles across insights and news.
Articles — page 5 of 8
How to Upskill Your Team on Quantum Computing Without Hiring a Physicist
You have already accepted the skills gap is real. The question now is not whether to train your team, but how to design that training so it does not…
Quantum Computing Skills Gap: What It Means for Your Leadership Team
Most coverage of the quantum skills gap is about who you cannot hire. The more urgent version is about who is already in the room and cannot evaluate…
Is a Quantum Computing Certification Worth It? A Business Case for Executives
Executives asking whether a quantum certification is worth it are rarely comparing it against doing nothing. They are comparing it against reading…
Quantum Computing Training ROI: How to Justify the Budget Line
A training budget for quantum literacy gets stalled for a specific reason: nobody can point to a loss it would have prevented. The stronger argument…
How to Choose a Quantum Computing Course for Non-Technical Professionals
There is no shortage of quantum computing courses aimed at business audiences. The shortage is a way to tell them apart before you commit ten weeks or…
Quantum Computing Opportunities for Business: Beyond the Security Conversation
If your job is not security, most quantum content available to you, including QSECDEF's own back catalogue, has not been written for you. This is.
Preparing Your Business for the Quantum Era: A Non-Technical Roadmap
There is no certificate of quantum readiness you earn once and file away. Readiness is four ongoing stages, and the fourth one is the stage most…
Quantum Computing Investment Trends Every Business Leader Should Track
This is not investment advice. It is a market-maturity signal, and reading it correctly means knowing which of McKinsey's numbers measures what.
Free Quantum Computing Courses for Business Leaders: What to Look for in 2026
Not every "free" quantum course means the same thing. Some are free in full. Some are free until the good part. Knowing which is which, before you…
The 10 Most Common Cyberattacks: How Quantum Computing Changes Which Ones to Fear
Most enterprise cyberattacks are unaffected by quantum computing. Three categories are not. This analysis maps quantum relevance against the 10 most…
Quantum Error Correction Explained: What It Means for the Q-Day Timeline
Google Willow demonstrated below-threshold error correction in December 2024. What that milestone actually means for the timeline to a…
SAML and OIDC PQC: Identity Provider Migration Considerations
Identity infrastructure sits at the boundary of most enterprise security models. For IAM engineers and security architects, post-quantum migration of…
TLS Handshake Performance with PQC: Real-World Numbers
The concern that post-quantum TLS will slow down HTTPS connections is widespread and, in most production environments, wrong. This analysis covers…
Mobile OS Post-Quantum Cryptography: Android vs iOS in 2026
When Apple launched iMessage PQ3 in February 2024, coverage declared that iPhones were now quantum-safe. When Google deployed hybrid post-quantum TLS…
Quantum-Secure Messaging: Signal Protocol and the Post-Quantum Future
Signal, iMessage, and WhatsApp all made post-quantum announcements between 2023 and 2024. Each application addressed a specific cryptographic…
Crypto Agility: Six Architecture Principles for 2026
Most organisations do not have a cryptography problem. They have a hardcoded cryptography problem. The distinction matters because the solution to the…
Cyber Insurance and PQC Readiness: What Underwriters Are Starting to Ask
Before 2021, most cyber insurance questionnaires asked whether you had a firewall and an incident response plan. Then ransomware losses climbed…
Enterprise Post-Quantum VPNs: A Deployment Comparison
Post-quantum VPN migration is not a single task. Enterprise VPN infrastructure spans three distinct protocol families, each with a different…
Quantum Cryptography Misconceptions: What Practitioners Get Wrong
The terminology around quantum security has drifted badly enough that practitioners working from plausible-sounding assumptions are making procurement…
Quantum-Resistant Blockchain: Rollup and L2 Security Considerations
Writing about quantum threats to blockchain almost always starts at Layer 1: Shor's algorithm breaks secp256k1, Bitcoin and Ethereum wallet keys are…
Hash-Based Signatures: When XMSS and LMS Beat ML-DSA
Most post-quantum migration guidance directs organisations to ML-DSA for all signature needs. For firmware signing pipelines, long-lived code signing…
Digital Signatures in the Post-Quantum Era: A Non-Technical Explainer
Every time you sign a contract digitally, download a software update, or visit a website over HTTPS, a digital signature is working in the background.…
Quantum Key Distribution in Government Deployments: What Works, What Doesn’t
Government security programmes increasingly encounter QKD in briefings and vendor pitches, often without a clear picture of where it has been…
ML-KEM vs X25519: A Comparative Performance Analysis
If you are evaluating hybrid post-quantum TLS deployment for production infrastructure, this article provides the numbers: CPU cycles, key sizes,…
Quantum Networking Explained: How Quantum Repeaters and Entanglement Distribution Work
Classical optical repeaters work by measuring the incoming signal and re-amplifying it. Measure, copy, transmit. This is precisely what quantum…
Nation-State Quantum Programmes: CNI Implications and Threat Modelling
Critical national infrastructure is a different post-quantum problem. The data lifetimes are longer, the patching cycles are slower, and the…
What Is a Logical Qubit and Why It Changes the Q-Day Timeline Calculation
Hardware announcements in quantum computing follow a reliable pattern: a large headline number, a spectacular benchmark, and a wave of coverage about…
Why Encrypted Archives from 2018 May Not Be Safe in 2030
The standard reassurance that older data is encrypted and therefore protected does not hold against a CRQC running Shor's algorithm. This article…
Symmetric vs Asymmetric Cryptography: How the Quantum Threat Maps Differently onto Each
The quantum threat does not map uniformly onto cryptography. Shor's algorithm breaks asymmetric cryptography completely. Grover's algorithm weakens…
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