Nicolas Christin is an Associate Research Professor in the School of Computer Science and in Engineering and Public Policy at Carnegie Mellon University. He is affiliated with the Institute for Software Research, and is a core faculty member of CyLab, the university-wide security institute. He also also courtesy appointments in the Electrical and Computer Engineering department, and in the Information Networking Institute. He holds a Diplôme d'Ingénieur from École Centrale Lille, and M.S. and Ph.D. degrees in Computer Science from the University of Virginia. He was a researcher in the School of Information at the University of California, Berkeley, prior to joining Carnegie Mellon in 2005. His research interests are in computer and information systems networks; most of his work is at the boundary of systems and policy research, with a slant toward security aspects. He has most recently focused on online crime, security economics, and psychological aspects of computer security. His group's research won several awards including Honorable Mention at ACM CHI 2011, and Best Student Paper Award at USENIX Security 2014. He equally enjoys field measurements and mathematical modeling.