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. She works at the intersection of privacy, surveillance, national security law, and cybersecurity. Landau is the author of four books: People Count: Contact-Tracing Apps and Public Health, Listening In: Cybersecurity in an Insecure Age; Surveillance or Security? Risks Posed by New Communications Technologies; and co-author, with Whitfield Diffie, Privacy on the Line: The Politics of Wiretapping and Encryption. Landau has testified before Congress and briefed US and European policymakers on encryption, surveillance, and cybersecurity issues. She has served on various advisory boards, including the National Academies Computer Science and Telecommunications Board, NSF Computer and Information Science Advisory Board, and NIST's Information Security and Privacy Advisory Board. Landau has received multiple awards, including a Lifetime Achievement Award from USENIX in 2023. She received a BA from Princeton, an MS from Cornell, and a PhD from MIT.