This book explores the intersection of cybersecurity and psychology, examining the motivations and behaviours of cybersecurity professionals, employees, hackers, and cybercriminals. It delves into the psychology of both cyber attackers and defenders, offering insights into their motivations. The book will explore key themes which include cognitive bias, human factors in decision-making, and the impact of threat vectors. The book features numerous case studies and interviews with hackers and whistleblowers, providing a comprehensive understanding of cybersecurity from multiple perspectives. Ideal for tech enthusiasts and psychology lovers, this book highlights the critical connection between human behaviour and digital security. Tarnveer Singh FBCS FCIIS is Fellow of the British Computer Society and Chartered Institute of Information Security, UK. He has served as the Director of Cyber Wisdom LTD. and is the author of multiple books including Digital Resilience, Cybersecurity and Supply Chains (2025), Artificial Intelligence and Ethics: A Field Guide for Stakeholders (2025) and Finance Transformation: Leadership on Digital Transformation and Disruptive Innovation (2025).