K. Coby Wang
Staff Research Scientist
I am a security researcher at Visa Research. My research interests are in authentication, applied cryptography, and distributed system security.
I received my Ph.D. degree from the Department of Computer Science at UNC-Chapel Hill, where I was fortunate to be advised by Prof. Mike Reiter. My Ph.D. research mainly focused on detection of credential breaches and credential abuse across services. After graduation, I joined the Department of Computer Science at Duke University as a research associate and continued working on credential breach detection until joining Visa Research.
[WR21] 
Using Amnesia to detect credential database breaches[WR20] 
Detecting stuffing of a user’s credentials at her own accounts[WR19] 
How to end password reuse on the web[SWLQ+15] 
PassApp: My app is my password!