The purpose of this course is to make critical infrastructure employees and service providers aware of actions they can take to detect and report suspicious activities associated with adversarial surveillance. To achieve this goal, the course provides an overview of surveillance activities and the indicators associated with them, as well as the actions that employees and service providers can take to report potential surveillance incidents. The learner must achieve a minimum passing score of 75% on final knowledge assessments or demonstrate mastery on performance assessments or research assignments to earn the IACET CEU.