The ability to reach a variety of audiences in diverse environments has made distance learning a major form of education and training in the 21st century. Though traditionally encountered in the educational and business communities, distance learning has proven an important resource for a variety of other constituencies. Terrorist groups have exploited the digital domain as a means of recruitment, propaganda and training, and other related activities, including the use of distance learning as a strategic resource and force multiplier. The distance learning strategies and tactics of jihadists are reviewed as we explore the dark side of distance learning.