Building and sustaining cybersecurity in the enterprise isn’t just a technical challenge; it is an organizational imperative. In a world where most guidance is geared toward mid-sized environments, Integrated Assurance fills a critical gap by addressing the realities of large, complex enterprises where traditional security practices break down. This book introduces a strategic, business-aligned model for integrating cybersecurity and IT operations that acknowledges the friction between legacy systems and modern demands, global operations and local control, and innovation and compliance. It reframes security as an embedded operational function, not an isolated overlay. With practical insights and a disciplined methodology, Integrated Assurance helps leaders navigate organizational silos, align teams around shared goals, and manage risk across fractured environments. It’s a guide for those ready to move beyond checklists and fire drills and toward building systems that are resilient, secure by design, and aligned with business growth. Ideal for CISOs, CIOs, enterprise architects, risk officers, and transformation leaders, this book is for anyone who lives at the intersection of complexity and accountability and who is ready to bridge the divide between security and operations.