About
I am a third-year PhD student at Cornell Tech advised by Ari Juels. I graduated from Princeton University with a BSE in Electrical Engineering, where I worked on censorship circumvention systems for my undergraduate thesis, advised by Prateek Mittal. Before starting my PhD I worked for three years as a Trading Engineer at IMC Trading in Chicago.
Research
I'm interested in using cryptography and game theory to design systems with robust, interpretable security properties. I'm particularly drawn to tradeoffs between transparency and privacy across domains including voting, online communication, and AI.
Publications
I-HITL: Inalienable Human-in-the-Loop
arXiv preprint arXiv:2610.35835, 2026PDF
Crypto x AI, AI x Crypto: A Survey
arXiv preprint arXiv:2606.13892, 2026PDF
π Creds: Privately Inferred Credentials
arXiv preprint arXiv:2606.03771, 2026PDF
The CoinAlg Bind: Profitability-Fairness Tradeoffs in Collective Investment Algorithms
arXiv preprint arXiv:2601.00523, 2026PDF
B-Privacy: Defining and Enforcing Privacy in Weighted Voting
35th USENIX Security Symposium (USENIX Security 26), 2026PDF
Mitigating Injection Attacks against E2EE Applications via View-Based Partitioning
34th USENIX Security Symposium (USENIX Security 25), 2025PDF
* Equal contribution
Contact
Email: sjbreck@cs.cornell.edu