Leadership · Fractional CISO · Released October 2026

Priced to Deliver by Kai London

Many organisations need security leadership but not a full-time CISO. This playbook covers how virtual and fractional CISOs scope engagements, assess clients quickly, deliver roadmaps that get implemented and report in a way that keeps the work going.

What the book covers

The vCISO model

Where fractional security leadership fits and what clients expect.

Scoping engagements

Defining services, boundaries and responsibilities clearly.

Rapid assessment

Getting to the most important risks in the first weeks.

Roadmaps that land

Prioritised plans matched to budget and capacity.

Client reporting

Board and management reporting that shows progress.

Running the practice

Pricing, contracts, liability and managing multiple clients.

This book offers general guidance and is not legal or commercial advice.

vCISOFractional CISOSecurity consultingLeadership

Who it is for

Independent and consultancy-based virtual CISOs, experienced security leaders going fractional, and organisations hiring one.

About the author

Professor Kai London — CISSP, CISM.

An internationally recognised cybersecurity executive, board advisor and Founder & CEO of Quantum AI Systems Security LLC, writing at the convergence of AI, governance and operational resilience. Honorary Professor and Researcher at UCL.