of data centers, where critical infrastructure and sensitive information converge, this commitment becomes even more essential. Structured as both an introduction and a practical reference, this work is intended to support security practitioners, operations personnel, and decision-makers alike. Each chapter concludes with a summary to reinforce key concepts and provide actionable insights that can be applied in real-world scenarios. This book is designed to provide readers with a clear and practical understanding of security operations within data center environments. It aims to equip professionals with the foundational knowledge needed to identify, assess, and respond to threats that may not always be visible in day-to-day operations. By focusing on both principles and practice, the book serves as a guide to navigating the complexities of modern security challenges.