Coby Wang

Staff Research Scientist

Team: Systems security

Research areas: Authentication, applied cryptography, and distributed system security

Dr. Ke (Coby) Wang  joined Visa Research as a Staff Research Scientist in September 2022. Prior to joining Visa, Coby was a research associate at Duke University. Coby received his Ph.D. degree from the Department of Computer Science at the University of North Carolina at Chapel Hill in 2021. His dissertation focused on credential breach detection and cross-website credential abuse defense based on secure two-party computation.

As a member of the Systems Security team, Coby’s research interests are in authentication, applied cryptography and distributed system security. He has published papers in several international conferences, including USENIX Security Symposium, Network and Distributed System Security Symposium (NDSS), and others.


  1. K. C. Wang and M. K. Reiter, "Using Amnesia to detect credential database breaches", 30th USENIX Security Symposium (USENIX Security), 2021.
  2. K. C. Wang and M. K. Reiter, "Detecting stuffing of a user’s credentials at her own accounts", 29th USENIX Security Symposium (USENIX Security), 2020.
  3. K. C. Wang and M. K. Reiter, " How to end password reuse on the web", 26th Network and Distributed System Security Symposium (NDSS), 2019.
  4. H. Sun, K. C. Wang, X. Li, N. Qin, and Z. Chen, "PassApp: My app is my password!", 17th ACM International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI), 2015.