Susan Landau

Susan Landau

Research/Areas of Interest: Cybersecurity policy, Privacy, Communications Surveillance


  • Ph.D., Massachusetts Institute of Technology, United States, 1983
  • M.S., Cornell University, Ithaca, United States, 1979
  • B.A., Princeton University, Princeton, United States, 1976


Susan Landau works at the intersection of cybersecurity, national security, law, and policy. She has testified before Congress, written for the Washington Post, Science, and Scientific American, and frequently appears on NPR and BBC. Her previous positions include senior staff privacy analyst at Google, distinguished engineer at Sun Microsystems, and faculty member at Worcester Polytechnic Institute, the University of Massachusetts Amherst, and Wesleyan University.

Selected Publications

Landau, S. (2022). Cyberwar in Ukraine: What You See Is Not What’s Really There. Lawfare: Lawfare.

Landau, S. (2016). The real security issues of the iPhone case: Law enforcement needs 21st-century investigative savvy. Science, 352(6292), 1398-1399. doi:10.1126/science.aaf7708

Landau, S. (2015). Control use of data to protect privacy. Science, 347(6221), 504-506. doi:10.1126/science.aaa4961

Bellovin, S. M., Blaze, M., Landau, S., & Pell, S. K. (2016). It's Too Complicated: How the Internet Upends Katz, Smith, and Electronic Surveillance Law.

Abelson, H., Anderson, R., Bellovin, S. M., Benaloh, J., Blaze, M., Diffie, W., . . . Weitzner, D. J. (2015). Keys under doormats: Mandating insecurity by requiring government access to all data and communications. Journal of Cybersecurity, 1(1), 69-79. doi:10.1093/cybsec/tyv009

Landau, S. (2017). Listening in Cybersecurity in an Insecure Age. Yale University Press.

Landau, S., Bellvoin, S., & Lin, H. (2019). Limiting the undesired impact of cyber weapons: Technical requirements and policy implications. In A. Zegart, & H. Lin (Eds.), Bytes, Bombs, and Spies (pp. 265-288). Washington DC: Brookings Institution Press.

Landau, S. (2014). Under the radar: NSA's efforts to secure private-sector telecommunications infrastructure. Journal of National Security Law and Policy, 7(3), 411-442.

Landau, S., & Lubin, A. (n.d.). Examining the Anomalies, Explaining the Value: Should the USA FREEDOM Act’s Metadata Program be Extended?. SSRN Electronic Journal. doi:10.2139/ssrn.3434358

Landau, S. (2020). Categorizing Uses of Communications Metadata: Systematizing Knowledge and Presenting a Path for Privacy. In ACM International Conference Proceeding Series (pp. 1-19). doi:10.1145/3442167.3442171