A comprehensive revision with the latest insights into counterintelligence practices. Counterintelligence Theory and Practice, Third Edition, is the most comprehensive and authoritative overview of this area of intelligence studies. More than just an update, the third edition is a comprehensive reconsideration of counterintelligence in the face of twenty-first century challenges--with revisions for currency, expanded content, new case studies, and a new chapter on cybersecurity, this text provides readers with the latest insights into counterintelligence practices . From cyber-espionage threats to the intricacies of human intelligence gathering, Hank Prunckun covers not just the "how" but also the "why" behind counterintelligence operations and frames the subject in broader historical, social, and ethical contexts. The third edition features: · New Chapter 16 on counterintelligence in authoritarian regimes · New Chapter 17 on cyber counterintelligence · New and expanded case studies in nearly every chapter to reinforce the applied lessons · Deep exploration of the ethical dimensions of counterintelligence, stressing the importance of principled decision-making in safeguarding national interests and corporate assets. · Interactive exercises and scenarios , to engage readers and hone your analytical and critical thinking abilities through practical applications. · A multidisciplinary perspective encompassing psychology, technology, international relations, and criminology, making this edition a comprehensive resource for understanding counterintelligence. · Global examples that explore a wide array of recent and historical counterintelligence operations worldwide From fundamentals to advanced tactics, this edition covers all counterintelligence aspects, catering to professionals, academics, and students alike.