Susan Landau is Bridge Professor in Cyber Security and Policy at The Fletcher School and the School of Engineering, Department of Computer Science, Tufts University and Visiting Professor, Department of Computer Science, University College London. Landau's new book, People Count: Contact-Tracing Apps and Public Health (MIT Press), focuses on efficacy, equity, and privacy. Landau has written three books on encryption and wiretap policy: Listening In: Cybersecurity in an Insecure Age (Yale University Press, 2017), Surveillance or Security? The Risks Posed by New Wiretapping Technologies (MIT Press, 2011) and, with Whitfield Diffie, of Privacy on the Line: The Politics of Wiretapping and Encryption (MIT Press, rev. ed. 2007). Landau has testified before Congress, written for the Washington Post, Science, and Scientific American, and frequently appears on NPR and BBC. Landau has been a senior staff Privacy Analyst at Google, a Distinguished Engineer at Sun Microsystems, and a faculty member at Worcester Polytechnic Institute, the University of Massachusetts Amherst, and Wesleyan University. She received the 2008 Women of Vision Social Impact Award, was a 2010-2011 fellow of the Radcliffe Institute for Advanced Study, was a 2012 Guggenheim fellow, was inducted into the Cybersecurity Hall of Fame in 2015 and into the Information System Security Association Hall of Fame in 2018. She is also a fellow of the American Association for the Advancement of Science and the Association for Computing Machinery.