Jan William Johnsen

Jan William Johnsen is a Researcher at the Department of Information Security and Communication Technology, Norwegian University of Science and Technology (NTNU), within the Faculty of Information Technology and Electrical Engineering. He specializes in digital forensics, cybercrime analysis, and social network analysis, with a focus on applying big data techniques to criminal investigations.

His research interests include identifying cybercriminals through text and network analysis, preprocessing natural language for open-source intelligence, and investigating technological factors affecting child sexual abuse material distribution. He has contributed to interdisciplinary studies on criminal network dynamics and has co-authored reports on digital forensics for major institutions.

Recent publications highlight trends in criminal network analysis, automated forensic frameworks, and the application of big data in cybercrime investigations. His work bridges technical cybersecurity methods with criminal justice applications.

Johnsen teaches courses such as IMT4114 (Introduction to Digital Forensics) and IMT4130 (Investigation of Cybercrime), and has participated in international workshops like the IEEE Big Data conference. His contributions include developing tools like Reccoon for network footprinting and analyzing organized crime groups' communication patterns.