This book aims to provide a comprehensive overview of the evolution, trends, techniques, impact on critical infrastructures and national security, countermeasures, and open research directions in this area. It will serve as a valuable source of knowledge on the topic.

Dr. Mohiuddin Ahmed has been educating the next generation of cyber leaders and researching to disrupt the cybercrime ecosystem. His research is focused on ensuring national security and safeguarding critical infrastructures from cyber terrorists. Mohiuddin has edited several books and contributed articles to The Conversation. His research publications in reputed venues attracted more than 5000 citations with a h-index of 28 and have been listed in the world's top 2% of scientists for the 2020-2023 citation impact. Mohiuddin secured several external and internal grants worth more than $1.7 Million and has been collaborating with academia and industry. He has been regularly invited to speak at international conferences and public organizations and interviewed by the media for expert opinion. He is also a Fellow of the Higher Education Academy, UK.

Preface. About the Editor. List of Contributors. Acknowledgements. SECTION I: History of Ransomware Groups. Chapter 1: A Brief History of Ransomware. Chapter 2: A closer look at the famous Ransomware Groups. SECTION II: Ransomware in Healthcare. Chapter 3: Actor Behaviour, Notable Incidents in Critical Infrastructures and Risks to the Health Sector. Chapter 4: Ransomware: Impacts in Healthcare Critical infrastructure. Chapter 5: The Evolution of Ransomware in Healthcare Organizations. SECTION III: Ransomware Countermeasures. Chapter 6: Ransomware Threat Mitigation Techniques: Past, Present and Future. Chapter 7: Ransomware Threat Mitigation Strategies for Protecting Critical Infrastructure Assets. Chapter 8: Ransomware Prevention Strategies: Building Robust Cyber Defenses. SECTION IV: Human Factors and Futuristic Challenges. Chapter 9: Malicious Minds: Psychological Profiling of Ransomware Attackers and Policing Challenges. Chapter 10: The Human Firewall: Mitigating Ransomware Risks in Critical Infrastructures Through Human-Centric Approaches. Chapter 11: Space Systems and Malware: Potential Threats. Index.