OSINT Techniques: Resources for Uncovering Online Information

by Michael Bazzell

Michael Bazzell's OSINT Techniques is the definitive guide to open-source intelligence investigation, updated annually to reflect changes in available data sources and search techniques. The book covers systematic approaches to locating information about people, businesses, and online activities using publicly available resources. Bazzell provides detailed methodologies for searching social media platforms, public records databases, people search engines, domain registration data, and archived web content. Each chapter focuses on a specific data category with step-by-step instructions for both manual techniques and automated tools. The book also covers creating anonymous research infrastructure, managing investigation notes, and maintaining operational security during OSINT investigations. Bazzell's experience as a former FBI cyber crimes investigator and technical advisor to the TV show Mr. Robot gives the content a practical, field-tested quality.