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The CISO's AI Firewall
A CISO's Guide to Securing, Governing, and Deploying Artificial Intelligence
This book is 100% completeLast updated on 2026-07-13
Built around the CISO's Decision Journey — a five-stage loop of Assess, Govern, Defend, Monitor, and Improve — this book across fourteen chapters moves from the AI threat landscape and the regulatory environment to threat modelling and red teaming, a layered security-controls architecture, AI incident response, the AI-assisted SOC, and a 90-day programme roadmap.
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About
About the Book
Your board just asked the question every security leader now dreads: "Are we exposed on AI?"
Generative and agentic AI have moved from experiment to infrastructure faster than any technology a CISO has had to govern - and the controls that protected deterministic software were never designed to contain systems that learn, generate, and act. The CISO's AI Firewall is the field guide for closing that gap.
Built around the CISO's Decision Journey — a five-stage loop of Assess, Govern, Defend, Monitor, and Improve — this book turns an overwhelming problem into a sequence you can lead. Across fourteen chapters it moves from the AI threat landscape and the regulatory environment to threat modelling and red teaming, a layered security-controls architecture, AI incident response, the AI-assisted SOC, and a 90-day programme roadmap.
You will learn to:
Build a risk-based inventory of the AI systems, models, and data across your enterprise
Map AI-specific threats — prompt injection, data poisoning, model theft, excessive agency — to concrete controls
Align to the standards you'll be measured against: the OWASP Top 10 for LLM Applications (2025), the NIST AI RMF, ISO/IEC 42001, MITRE ATLAS, the EU AI Act, and APRA CPS 234
Translate technical risk into board-ready language, metrics, and governance
Whether you're a CISO, security architect, GRC leader, or board sponsor, this is a practical, vendor-neutral playbook for governing large language models before the breach — not after.
Practical. Actionable. Built for today's CISO.
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About the Author
Steve Sharma
Steve Sharma is a Principal Cybersecurity Architect and IRAP Assessor with over eighteen years of experience protecting Australia's most critical organizations, including federal and state government departments, major financial institutions, and essential infrastructure providers.
As the founder of Cybersecurity Link, Steve specializes in the intersection of Artificial Intelligence and security. He has delivered multiple IRAP accreditations in highly regulated environments. His work includes designing Zero Trust architectures and building secure MLOps pipelines for AI workloads.
Steve holds multiple professional certifications, including CISSP, SABSA, TOGAF, and ISO 27001 Lead Auditor. He regularly speaks at international security conferences on the topic of AI security.
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