
- hngu281@lsu.edu
About Me
I’m a PhD candidate in Computer Science at the Louisiana State University (LSU), advised by Dr. Phani Vadrevu. My research interests lie broadly in applied security, with a particular emphasis on web security and privacy. Currently, my work centers on building and deploying scalable systems to measure and analyze various online threats including browser fingerprinting, social engineering attacks, bot-driven fraud, and other online abuses, and on designing effective defenses to protect users and services.
News
July 2025 | Awarded USENIX Security Travel Grant. |
June 2025 | Awarded the Summer Opportunities Fellowship at LSU (supported by Shell Oil Company). |
May 2025 | “Personal Impersonation Attacks” paper accepted to USENIX Security 2025. |
Jan 2025 | “Attacks Against Canvas Fingerprinting Defenses” paper accepted at WWW 2025. |
May 2024 | Awarded IEEE S&P 2024 Travel Grant. |
Mar 2024 | “In-the-Wild CAPTCHA Attacks” paper accepted at IEEE S&P 2024. |
Dec 2023 | “Cryptocurrency Scams” paper accepted at IEEE S&P 2024. |
Oct 2023 | Awarded ACM IMC 2023 Travel Grant. |
Sep 2022 | “Web Audio Fingerprinting” paper accepted at ACM IMC 2022. |
Jan 2021 | Awarded the Tolmas Scholars 2021 Fellowship at the University of New Orleans. |
Publications
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Breaking the Shield: Analyzing and Attacking Canvas Fingerprinting Defenses in the Wild
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C-FRAME: Characterizing and Measuring in-the-wild CAPTCHA Attacks
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Conning the Crypto Conman: End-to-End Analysis of Cryptocurrency-based Technical Support Scams
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Your Speaker or My Snooper? Measuring the Effectiveness of Web Audio Browser Fingerprints
2025
2024
2022
Academic Service
- PC Member: ACM AsiaCCS '26, IEEE EuroS&P '26
- AEC Member: USENIX Security '24, ACSAC '23
- External Reviewer: The Web Conference (WWW) '25, ACM CODASPY '24