His research covers dependability and security issues. His latest research focuses on the empirical quantification of cybersecurity. He has published over 70 papers in journals and refereed conference proceedings in those areas. He is the PI of an NSF REU Site on cybersecurity in collaboration with Women in Engineering where over 85% of the participants are female students. He co-advises the UMD Cybersecurity Club with a membership of over 400 students.