· Director and Bosch Distinguished Professor in Security and Privacy Technologies, CyLab Security and Privacy Institute, Carnegie Mellon University2019–
· FORE Systems University Professor of Computer Science and of Engineering & Public Policy, Carnegie Mellon University2017–
· Chief Technologist, US Federal Trade Commission2016–2017
· Fellow, Frank-Ratchye STUDIO for Creative Inquiry, Carnegie Mellon University2012–2013
· Associate Professor, Carnegie Mellon University2008–2014
· Co-founder and Chief Scientist, Wombat Security Technologies2008–2011
· Associate Research Professor, Carnegie Mellon University2003–2008
· Adjunct Assistant Professor of Information Systems, New York University Stern School of Business2003–
· Principal Technical Staff Member, AT&T Labs-Research2001–2003
· Senior Technical Staff Member, AT&T Labs-Research1996–2001
· Doctor of Science in Engineering and Policy, Washington University in St. Louis1996–
· MS in Computer Science, Washington University in St. Louis1996–
· Lecturer and Manager of the Student Staff, Washington University in St. Louis1993–1996
· Master of Science in Technology and Human Affairs, Washington University in St. Louis1993–
· Bachelor of Science in Engineering and Public Policy, Washington University in St. Louis1992–
· Research Assistant, Washington University in St. Louis1992–1993