Stephen Chong

Associate Professor of Computer Science
School of Engineering and Applied Sciences
Harvard University

Office: 145 Maxwell Dworkin Hall
More contact details...

Photo: Stephen Chong

Research Interests

My research aims to help programmers write trustworthy programs. My primary area of interest is language-based information security: using programming language techniques to provide information security assurance.

Recent publications


In Fall 2014 I am teaching CS 252r, a graduate seminar on programming languages. The topic of the seminar iso be Analysis of Web and Distributed Applications. In Spring 2015 I will teach CS 152, an undergraduate course that considers the formal foundations of programming languages.

Previous courses:

Current projects

  • CHILI Enabling the execution of code of unknown origin while guaranteeing that the code is not vulnerable to various classes of security attacks.
  • Accrue Providing language-based security guarantees proportional to programmer effort.
  • Privacy Tools for Sharing Research Data Enhance technologies and policies to protect personal data used in research studies.


  • Previous
    • Jeff Vaughan (post doc, now at LogicBlox)
    • Stefan Muller (undergrad, now grad student at CMU)
    • Evan Czaplicki (undergrad, now at Prezi)
    • Anna Gommerstadt (undergrad, now grad student at CMU)
    • Dan Bradley (undergrad)
    • Aslan Askarov (post doc, now at Aarhus University)


Professional activities

Positions available

I am looking for talented and motivated students to work with, both undergraduate and graduate. More information can be found here.

Brief bio

(Bio suitable for talk announcements, etc.)

I completed a Ph.D. at Cornell University in August 2008, under the guidance of Andrew Myers. Prior to graduate school, I spent several years working as a consultant and contractor. I received a B.Sc.(Hons) and B.A. from Victoria University of Wellington, in Wellington, New Zealand. My wife, Kiran Gajwani, is a Lecturer/Advisor in the Economics Department at Harvard.