&quot;OSINT in the Intelligence era. Lecture Notes- VOl.1&quot; is a comprehensive book that takes readers on a captivating journey into the realm of intelligence and Open Source Intelligence (OSINT). With an emphasis on practical knowledge and real-world applications, this book covers a wide range of topics, from the fundamentals of intelligence to the intricacies of OSINT methodologies.<br />In the early chapters, readers are introduced to the concept of intelligence, its historical evolution, and the various levels it encompasses. The book then delves into the intelligence cycle, warfight domains in a military context, and explores the 5th dimension of cyberspace and network-centric warfare. Additionally, it explores the emerging 6th dimension of cognitive warfare, highlighting its significance in modern intelligence operations.<br />The book also examines different types of intelligence, including national security intelligence and criminal intelligence. Readers gain insights into the functions of criminal intelligence, the Europol EMPACT policy cycle, and the role of OSINT as a cross-disciplinary intelligence discipline. Furthermore, the book explores the ethical considerations and legal aspects of OSINT activities, with a focus on privacy-respectful OSINT practices.<br />Addressing the limitations of intelligence, the book sheds light on cognitive biases in both intelligence and OSINT, emphasizing the importance of critical thinking and data quality. It also explores the challenges posed by news bias, the proliferation of fake news, and the rise of deepfakes. Additionally, the book examines the impact of artificial intelligence (AI), natural language processing (NLP), transformers, and ChatGPT technologies on online investigations and intelligence operations.<br />To equip readers with the necessary technical skills, the book covers the basics of IP networking for OSINT. Topics include network protocols, the OSI blueprint, the TCP/IP protocol suite, internet fundamentals, IP protocols, DNS, hypertexts, and email services. The book also provides guidance on machine preparation, virtual machines, OSINT prebuilt virtual machines, anonymization techniques, and the use of regular expressions for text extraction.<br />&quot;OSINT in the Intelligence era. Lecture Notes- VOl.1&quot; serves as an invaluable resource for intelligence professionals, cybersecurity practitioners, law enforcement officers, researchers, and anyone interested in understanding the fascinating world of intelligence and harnessing the power of OSINT. With practical insights, ethical considerations, and technical guidance, this book empowers readers to navigate the complex landscape of intelligence with confidence and proficiency.