Lujo's research examines many topics related to computer security, from information-flow control and machine learning to usable privacy and security. His recent work focuses on developing tools and guidance to help users stay safer online and examining how advances in machine learning could lead to a more secure future. Lujo served as program chair for the flagship computer security conferences of the IEEE (S&P 2015) and the Internet Society (NDSS 2014) and is an associate editor of the ACM Transactions on Privacy and Security. He received his PhD in Computer Science from Princeton University.