David Choffnes is an Assistant Professor in the College of Computer and Information Science at Northeastern University. Before joining Northeastern, he was a postdoctoral research associate in Professor Tom Anderson’s group at the University of Washington. Professor Choffnes earned his PhD in Computer Science from Northwestern University in 2010, and graduated from Amherst College, magna cum laude, in 2002 with a double-major in physics and French. Dr. Choffnes was awarded the Computing Innovation Fellowship to support his postdoctoral work. His Ph.D. dissertation won the 2009/2010 Outstanding Dissertation in EECS at Northwestern University, where he was also awarded two Cabell Fellowships. While working for Deitel & Associates from 2002-2004, he co-authored two textbooks and contributed to a third. His research has been covered by popular press including the Boston Globe, NBC News, CS Monitor, Science Magazine, the MIT Tech Review, Chronicle of Higher Education and Ars Technica. His work is supported by the NSF, Measurement Lab, Google Research, the Data Transparency Lab, and DHS S&T.