Information technology is ubiquitous. It powers the global economy, improves government administration, enhances military power, and connects modern civil society. For the same reasons, technology creates new opportunities to leverage these same networks for espionage, subversion, and disruption. While the technology is new, practices of deception and counterintelligence are very old. This course examines the problems of cybersecurity through the lens of intelligence. Students will be introduced to enduring concepts from the world of intelligence and learn to apply them through a series of case studies of modern cyber conflict.