Weijia He (何唯嘉)

Security Researcher in IoT (last updated: 11/21/2023)

About Me

I am a Postdoctoral Researcher at Dartmouth College, working with Professor David Kotz on the SPLICE project.
Before that, I obtained my Ph.D. degree of Computer Science at University of Chicago, advised by Professor Blase Ur. I received my B.Eng. in Cybersecurity from Shanghai Jiao Tong University in 2017.

My main research interests relate to security and privacy issues in ubiquitous computing systems. I studied contextual access control systems in smart homes in terms of both users’ mental models (USENIX Security 2018, PETS 2024) and sensing techniques (EuroS&P 2021). My recent project is around network traffic analysis for smart home devices. Outside smart homes, I am also generally interested in any IoT systems (or CPS). It is exciting to think about all the technologies that might have a physical impact in one’s daily life and how we can make them more secure.

I am on the academic job market this year, looking for tenure-track faculty positions. If you are interested in talking with me, please don’t hesitate to send me an email. :)


  • Dartmouth College (2022-Present)
    • Postdoctoral researcher


  • University of Chicago (2017-2022)
    • Ph.D. of Computer Science, Department of Computer Science
  • Shanghai Jiao Tong University (2013-2017)
    • B.Eng. of Cybersecurity


  • [PETS 2024] Contextualizing Interpersonal Data Sharing in Smart Homes [Paper forthcoming]
    Weijia He, Nathan Reitinger, Atheer Almogbil, Yi-Shyuan Chiang, Timothy Pierson, David Kotz.
    Proceedings on Privacy Enhancing Technologies Symposium (PETS 2024). Bristol, UK, July 2024.
  • [WPES 2023] The HandyTech’s Coming Between 1 and 4: Privacy Opportunities and Challenges for the IoT Handyperson
    Denise Anthony, Carl A. Gunter, Weijia He, Mounib Khanafer, Susan Landau, Ravindra Mangar, Nathan Reitinger.
    Workshop on Privacy in the Electronic Society (WPES 2023). Copenhagen, Denmark, November, 2023.
  • [EuroS&P 2021] SoK: Context Sensing for Access Control in the Adversarial Home IoT
    Weijia He, Valerie Zhao, Olivia Morkved, Sabeeka Siddiqui, Earlence Fernandes, Josiah Hester, Blase Ur.
    Proceedings of the 6th IEEE European Symposium on Security and Privacy (EuroS&P 2021). Online, September 2021.
  • [IMWUT/UbiComp 2020] Trace2TAP: Synthesizing Trigger-Action Programs From Traces of Behavior
    Lefan Zhang, Weijia He, Olivia Morkved, Valerie Zhao, Michael L. Littman, Shan Lu, Blase Ur.
    Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 4, 3, Article 104 (IMWUT / UbiComp). Online, September 2020.
  • [ICSE 2019] AutoTap: Synthesizing and Repairing Trigger-Action Programs Using LTL Properties
    Lefan Zhang, Weijia He, Jesse Martinez, Noah Brackenbury, Shan Lu, Blase Ur
    Proceedings of the 41st ACM/IEEE International Conference on Software Engineering (ICSE). Montreal, QC, Canada, May 2019.
  • [CHI 2019] How Users Interpret Bugs in Trigger-Action Programming
    Will Brackenbury, Abhimanyu Deora, Jillian Ritchey, Jason Vallee, Weijia He, Guan Wang, Michael L. Littman, Blase Ur
    Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI). Glasgow, UK, May 2019.
  • [SafeThings 2019] When Smart Devices Are Stupid: Negative Experiences Using Home Smart Devices
    Weijia He, Jesse Martinez, Roshni Padhi, Lefan Zhang, Blase Ur.
    Proceedings of the IEEE Workshop on the Internet of Safe Things. San Francisco, CA, May 2019.
  • [USENIX Security 2018] Rethinking Access Control and Authentication for the Home Internet of Things (IoT)
    Weijia He, Maximilian Golla, Roshni Padhi, Jordan Ofek, Markus Dürmuth, Earlence Fernandes, Blase Ur
    Proceedings of the 27th USENIX Security Symposium. Baltimore, MD, August 2018.
  • [WSSP 2018] Clap On, Clap Off: Usability of Authentication Methods in the Smart Home
    Weijia He, Juliette Hainline, Roshni Padhi, Blase Ur
    Proceedings of the Interactive Workshop on the Human Aspect of Smarthome Security and Privacy (WSSP). Baltimore, MD, August 2018.



  • Siebel Scholar, class of 2022 ($35,000)
  • Finalist for the 2020 NortonLifeLock Graduate Fellowship
  • 2019 IEEE Symposium on Security and Privacy Student Travel Grant ($1,250).
  • 2018 USENIX Security Student Grant ($745).
  • 2018 SOUPS Student Grant ($770).

Teaching Experiences