The Role of Artificial Intelligence in Cybersecurity presents a systematic and scholarly examination of the intersection between Al technologies and cybersecurity practices. As cyber threats grow in complexity and scope, conventional defence mechanisms are no longer sufficient. This book provides an in-depth understanding of how Al is being employed to enhance detection, response, authentication, infrastructure protection, and forensic analysis. Organised into eight comprehensive chapters, the book begins by outlining the fundamentals of Al and its. relevance to cybersecurity. It explores how Al-powered tools are utilised in threat detection such as identifying malware and network anomalies before delving into automated incident response mechanisms and real-time alert systems. Further chapters investigate Al’s role in authentication and access control, including biometric verification and behavioural analytics, followed by a discussion on securing lot and cloud ecosystems. In later sections, the book focuses on Al-enabled threat hunting, forensic techniques, and ethical considerations including bias, privacy, and adversarial Al. The final chapter offers insights into emerging trends and future directions in the Al-cybersecurity landscape. Each topic is approached with academic depth, incorporating current research findings, practical examples, and critical discussion. Designed to serve as a foundational and forward-looking resource, the book is suited for advanced students, cybersecurity professionals, and policy developers seeking to understand both the technical and ethical dimensions of Al integration in cybersecurity. By blending theory with applied knowledge, this book aims to support responsible innovation and informed decision-making in securing the digital future.