New briefing paper and Board companion bundle.
Practical Quantum Mechanics™
For Post-Quantum Preparedness
The physics-grounded foundation for understanding and addressing the quantum threat
Most quantum risk content does one of three things: it assumes a technical background that decision-makers lack, it tells organisations what to do without explaining why, or it asserts urgency without building real understanding. Practical Quantum Mechanics™ fills that gap — technically accurate without being mathematical, accessible without being superficial, and covering all three dimensions of the threat, not just data theft. Written by practitioners, without vendor funding or commercial bias. Available from £1,000.
PQM and PQF — two products, one complete picture
📋 Free — Practical Post-Quantum Transition Framework™ (PQF)
A practical migration framework based on risk-management methodology — ccovering data lifecycle management, governance, infrastructure readiness, crypto-agility and more. PQF tells you what to do.20 A4 pages to get you started. Available free.
📘 From £1,000 — Practical Quantum Mechanics™ (PQM) For Post-Quantum Preparedness
The physics-grounded understanding that makes PQF’s instructions credible and actionable — not just directives to follow on trust. PQM tells you why it matters and gives you the foundation to execute with genuine authority. 130-page briefing and analyisis.
PQF is operational. PQM is physics-grounded. PQF tells you what to do, in what sequence, and how to organise the work. PQM gives you the understanding to defend every step of it. Without PQM, you risk compliant but uncomprehending execution. Without PQF, you risk being well-informed but without a plan.
Choose your preferred product and licence

Practical Quantum Mechanics™ — £1,000 + VAT
- Full PQM paper — physics-grounded guide to the quantum threat
- Secure payment link via Stripe, named copy delivered via email within two working days upon receipt of payment
- 130-page briefing and analyisis
- SINGLE USER licence
Prefer to pay by invoice? Use the contact form below and we’ll arrange everything.

PQM + Quantum Preparedness Board Companion™ — £1,750 + VAT
Recommended for organisations with board reporting obligations
- Full PQM paper — physics-grounded guide to the quantum threat
- ADDITIONAL: Quantum Preparedness Board Companion™ — condensed, non-technical briefing for board audiences
- Secure payment link via Stripe, named copies delivered via email within two working days upon receipt of payment
- MULTI USER licence
- Both documents licensed for free distribution to all board members and NEDs
Prefer to pay by invoice? Use the contact form below and we’ll arrange everything.
Board Briefing — From £7,000
- Bespoke board-level briefing session delivered by a member of the team
- Tailored to your organisation’s sector, threat model, and regulatory context
- Includes pre-session questionnaire and post-session summary
- Quoted individually — no two organisations are the same
What’s inside PQM
For executives — CISO, CTO, CRO, Head of Technology
You are being asked to sponsor or approve multi-year, resource-intensive migrations for a technical risk that many do not yet fully comprehend. PQM gives you the physics-grounded understanding to evaluate quantum risk on its financial and fiduciary merits — and to exercise genuine governance rather than passive budget approval.
For board members — NED, audit committee, risk committee
PQM makes the quantum threat legible — accurately, without requiring a physics background. Includes a full regulatory reference table, the systemic risks beyond data breach, five questions to ask your executives, and the grounding to be an informed sponsor rather than a passive budget approver.
- Quantum mechanics for security leaders — Qubits, superposition, and entanglement explained without mathematics and without loss of accuracy, so you can explain them to sceptical stakeholders.
- Shor’s algorithm vs Grover’s — Why Shor’s breaks RSA asymmetrically where classical approaches cannot; why Grover’s is a different and lesser threat; and why the distinction shapes your response.
- The full adversarial picture across all three CIA triad dimensions — HNDL (harvest now, decrypt later), HNFL (harvest now, forge later), and DNEL (deploy now, exploit later) — including silent attack scenarios. Most quantum risk commentary covers only the confidentiality threat. PQM covers all three.
- Mosca’s Theorem and the decision threshold — The formula that defines when migration becomes urgent, based on your data’s lifespan and your migration timeline. Explained without algebra, structured for board presentation.
- The defence: post-quantum cryptography — How PQC works, what the NIST standards provide, and what crypto-agility means — and why it matters more than any single algorithm choice.
- Addressing scepticism — The language and evidence to answer doubt head-on: why RSA key size does not help, why a QKD proposal is solving the wrong problem, and why timing uncertainty does not reduce urgency.
- The regulatory and standards landscape — What is mandated, what is interpretive obligation, and what is forthcoming — across the US, UK, EU, Singapore, Australia, and beyond.
Quantum Preparedness Board Companion™
The Quantum Preparedness Board Companion™ distils PQM into a non-technical, board-ready format — giving directors, NEDs, and audit committee members the understanding they need without requiring a physics background. Available exclusively as part of the PQM + Board Companion bundle.
The Board Companion includes
- Executive summary: the quantum threat in plain English
- Five questions every board should be asking their CISO
- Accountability and governance checklist
- Regulatory landscape overview by sector
- Glossary of key terms for non-technical directors
Only available with the PQM + Board Companion bundle (£1,750 + VAT). Not sold separately. The bundle price includes the right to distribute the Quantum Preparedness Board Companion™ freely to all board members and NEDs — the price differential covers distribution rights, not additional content.
Foreword to PQM
‘I recommend Practical Quantum Mechanics™ to every security leader and board member who carries responsibility for digital infrastructure and services.
Q-Day is the name given to the moment a quantum computer becomes powerful enough to break the cryptography protecting most of what we transmit and store — transactions, communications, records, strategy. No one knows exactly when it will arrive. That ambiguity is the problem.
Unlike Y2K, which had a fixed countdown that forced organisations to act, this threat has no date on the calendar — and the window to prepare is closing quietly. Regulators are stepping in to fill that vacuum: the UK NCSC has set migration milestones from 2028 to 2035. The United States signed an Executive Order on 22 June 2026 setting hard deadlines for federal agencies to complete post-quantum migration of high-value systems: 2030 for encryption, 2031 for digital signatures. They are not acting because the threat is imminent. They are acting because without a deadline, nothing moves.
The threat is not waiting for Q-Day either. Intelligence agencies on both sides of the Atlantic confirm that adversaries are already collecting encrypted data today, to decrypt it once the capability exists. The window to act is measured from now, not from Q-Day.
The threat also extends beyond confidentiality. Quantum-capable adversaries will also be able to forge the cryptographic signatures that underpin trust in digital credentials, certificates, and system access — meaning the same capability that unlocks harvested data can also be used to impersonate, infiltrate, and disrupt. Unlike most quantum-threat commentary, PQM addresses all three dimensions.
We have managed forced cryptographic transitions before — SHA-1, TLS — and each took years longer than anyone expected, even after the vulnerability was proven. This one is larger in scale and longer in lead time.
PQM gives you the understanding to engage with it seriously, at board level.’
Karel De Kneef — Former Chief Security Officer, SWIFT · Founder, Karleef Cyber
Board Briefing — From £7,000
A bespoke board-level briefing session delivered by a member of the team — tailored to your organisation’s sector, threat model, and regulatory context. Tell us about your organisation and requirements; we will follow up within two working days to discuss scope and availability.
To enquire about a board briefing, or to request a BACS invoice for either product, please use the contact form below.
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