This volume, written by experts from academia, research institutions, police organizations, and private industry, tackles the most pressing challenges in the global security domain. Focusing on the protection of critical infrastructures, counterterrorism, cybercrime, and border security, this book examines how advanced ICT solutions can address emerging threats in the modern security landscape. It delves into the application of artificial intelligence, the dark web, and large-scale data analysis to combat serious and organized crime, manage disasters, and protect national security. Through a collection of case studies from over 30 large-scale research and development projects, this book provides practical insights into the operational challenges and security gaps faced by security professionals worldwide. It explores not only the theoretical aspects of global security but also identifies real-world solutions for contemporary issues such as cybercrime, border surveillance, and crisis management. The book offers a unique, multidisciplinary perspective on security policy, highlighting the complexities of securing critical infrastructures and combating global threats. By focusing on both the operational and technological aspects of security, it presents actionable insights for policy makers, security professionals, and researchers. This book is ideal for professionals and scholars in the fields of global security, cybersecurity, law enforcement, and public policy, as well as those interested in the evolving role of technology in safeguarding critical infrastructure and managing crises.