Assistant Professor, CCI Faculty Fellow
Department of Computer Science
Virginia Tech

Email: penggao [at] vt [dot] edu

Openings: We are looking for highly motivated students (including PhDs, Masters, undergraduates), postdocs, and visitors/interns to join our group. If you are interested, please send an email to penggao90 [at] gmail [dot] com with your CV.

(To prospective students: Due to the large number of email messages we receive, we cannot respond to each message individually. We will gladly respond to email messages from students who have demonstrated the effort to better understand our research.)


I am an Assistant Professor in the Department of Computer Science at Virginia Tech. During 2019-2021, I was a Postdoctoral Researcher in Computer Science at the University of California, Berkeley (with Dawn Song). I received my Ph.D. in Electrical Engineering at Princeton University (with Prateek Mittal and Sanjeev R. Kulkarni) in 2019. I received my B.E. in Electrical and Computer Engineering at Shanghai Jiao Tong University in 2013.

I am broadly interested in security, privacy, and systems. My research focuses on creating scalable, intelligent, secure, and trustworthy systems to solve real-world challenges. My current interests include the domains of threat protection, threat intelligence, blockchain, trustworthy AI, and privacy-preserving systems. My research draws on techniques from machine learning, natural language processing, program analysis, and network science.

Latest News

Selected Awards & Honors



Instructor, Virginia Tech

Teaching Assistant, Princeton University

Teaching Assistant, Shanghai Jiao Tong University


I have been fortunate to work with a group of fantastic students.

Ph.D. Students

Master's Students

Undergraduate Students / Interns



Professional Services

Technical Program Committee



Journal Reviewer

Poster Jury

External Reviewer