Dr. Greenstadt's research centers on the privacy and security properties of multi-agent systems and the economics of electronic privacy and information security. Her lab -- the Privacy, Security, and Automation Laboratory (PSAL) -- focuses on designing more trustworthy intelligent systems that act autonomously and with integrity, so that they can be trusted with important data and decisions. The lab takes a highly interdisciplinary approach to this research, incorporating ideas from artificial intelligence, psychology, economics, data privacy, and system security. However, a common thread of this work has been studying information flow, trustworthiness, and control. Recently, much of the work has focused on using machine learning to better understand textual communication. Contact