Title: Attribute-Based Access Control: Insights and Challenges Abstract: Since about 2010, interest in attribute-based access control (ABAC) among cybersecurity researchers and practitioners has grown considerably. Ravi Sandhu, PhD, Executive Director and Chief Scientist for the Institute of Cyber Security (ICS) at the University of Texas at San Antonio, will share his take on insights gathered by his s intensive research on the subject as well as those of other ABAC researchers. Dr. Sandhu will examine some of the challenges in his research as well as in practical deployments of ABAC.