Cybersecurity Auditing

Preface

Cybersecurity has matured from a niche technical discipline into a core business function that shapes strategy, protects revenue, and sustains trust. As that transition has unfolded, the role of internal audit has evolved with it. Today’s cyber auditor is expected to evaluate complex control environments, translate technical risks into business terms, and provide assurance that withstands scrutiny from boards, regulators, and customers. This book was written to help auditors meet that mandate with clarity, rigor, and practicality.

Cyber risk moves quickly, but assurance must remain durable. Many resources explain how to implement security; far fewer show how to independently test it, document it, and communicate conclusions that drive action. The focus here is the auditor’s work: scoping with purpose, selecting appropriate criteria, gathering defensible evidence, applying sound sampling and testing methods, and issuing findings that are both technically accurate and operationally useful. The aim is to be actionable in real environments—hybrid networks, multi-cloud estates, SaaS portfolios, modern application pipelines, and AI-enabled workflows—without losing sight of independence and professional judgment.

This book is intended for internal auditors, IT and security audit specialists, second-line risk and compliance leaders, and security managers who want to anticipate how assurance will be performed. It assumes familiarity with foundational security concepts and concentrates ...