Hadleigh Schwartz

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I’m a PhD student in Computer Science at Columbia University, advised by Xia Zhou, Dan Rubenstein, and Vishal Misra. My research focuses on developing content authenticity and media provenance technologies for audio and video. Previously, I worked on the computer vision aspects of several laser-based sensing and communication systems. I’m a recipient of a Columbia SEAS Presidential Distinguished Fellowship and an Amazon CAIT PhD Fellowship.

I completed my B.A. and M.S. in Computer Science at the University of Chicago, advised by Heather Zheng at the SAND Lab.

Email / LinkedIn / GitHub

Research

* Denotes co-primary authors
  1. CCS
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    Combating Falsification of Speech Videos with Live Optical Signatures
    Hadleigh Schwartz, Xiaofeng Yan, Charles J. Carver, and Xia Zhou
    Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications Security (CCS), Taipei, Taiwan, 2025
    arXiv Code Website
  2. IROS
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    Set Phasers to Stun: Beaming Power and Control to Mobile Microrobots with Laser Light
    Charles J. Carver*, Hadleigh Schwartz*, Toma Itagaki, Zachary Englhardt, and 6 more authors
    Proceedings of the 2025 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Hangzhou, China, 2025
    arXiv Code Website
  3. NSDI
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    Catch Me If You Can: Laser Tethering with Highly Mobile Targets
    Charles J. Carver*, Hadleigh Schwartz*, Qijia Shao, Nicholas Shade, and 5 more authors
    Proceedings of the 21st USENIX Symposium on Networked Systems Design and Implementation (NSDI), Santa Clara, CA, USA, 2024
    Best Demo Award at MobiCom 2023
    PDF Video Website Slides Presentation
  4. Security
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    Towards a General Video-based Keystroke Inference Attack
    Zhoulin Yang*, Yuxin Chen*, Zain Sarwar, Hadleigh Schwartz, and 2 more authors
    Proceedings of the 32nd USENIX Conference on Security Symposium, Anaheim, CA, USA, 2023
    PDF Website

Teaching

Emerging Scholars Program Jan. 2023-Present
PhD Co-Coordinator

Computer Networks (CSEE 4119) Spring 2024, Spring 2025
Teaching Assistant

Columbia Teaching Development Program Summer 2024
Completed Foundational Track