XH.
Portrait of Xu He

Data science · Systems · Security

Xu He 何旭

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01

About me

I am a Senior Data Scientist at Visa Inc.

I received my Ph.D. from the Information Science & Technology department at George Mason University, advised by Dr. Kun Sun. Before that, I earned a Bachelor of Engineering in Communication Engineering in 2016 and a Master of Engineering in Computer Science in 2019 from Nanjing University of Posts & Telecommunications.

02

News

  • Invited to serve on the Program Committee of USENIX SAIS '27. Conference website

  • Invited to serve on the Program Committee of ESORICS 2026. Conference website

03

Publications

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  1. Di Wu, Xu He, Shu Wang, Kun Sun. “BenchChecker: Assessing the Credibility of Bug-Fixing Benchmarks for LLMs.” 35th USENIX Security Symposium (USENIX Security 2026). Paper
  2. Hung-Mao Chen, Bo Lu, Xu He, Xiaokuan Zhang, Kun Sun. “CULPA: Universal Detection of Memory-Safety Bugs in Unsafe Rust Through the Lens of Safety Requirements.” 35th USENIX Security Symposium (USENIX Security 2026). Paper · Code
  3. Junyu Wang, Changjia Zhu, Yuanbo Zhou, Lingyao Li, Xu He, Junjie Xiong. “COGNITION: From Evaluation to Defense against Multimodal LLM CAPTCHA Solvers.” 35th USENIX Security Symposium (USENIX Security 2026). Paper · Preprint
  4. Xu He, Sagar Patel, Yan Zhai. “Tracing MCP Security Vulnerabilities: Constructing and Analyzing an MCP Security Vulnerability Dataset.” 1st Workshop on Datasets for Software Security (IEEE S&P Workshops 2026). Paper
  5. Xu He, Di Wu, Yan Zhai, Kun Sun. “SentinelAgent: Graph-based Anomaly Detection in Multi-Agent Systems.” Secure Agents for Generative Artificial Intelligence Workshop (IEEE S&P Workshops 2026). Preprint
  6. Xu He, Shu Wang, Kun Sun. “PathFix: Automated Program Repair with Expected Path.” IEEE Secure Development Conference (SecDev 2025). Paper · Code
  7. Hung-Mao Chen, Xu He, Shu Wang, Xiaokuan Zhang, Kun Sun. “TYPEPULSE: Detecting Type Confusion Bugs in Rust Programs.” 34th USENIX Security Symposium (USENIX Security 2025). Paper · Code
  8. Xu He, Shu Wang, Pengbin Feng, Xinda Wang, Shiyu Sun, Qi Li, Kun Sun. “BinGo: Identifying Security Patches in Binary Code with Graph Representation Learning.” ACM Asia Conference on Computer and Communications Security (AsiaCCS 2024). Paper · Code
  9. Yunlong Xing, Shu Wang, Shiyu Sun, Xu He, Kun Sun, Qi Li. “What IF Is Not Enough? Fixing Null Pointer Dereference With Contextual Check.” USENIX Security Symposium (USENIX Security 2024). Paper
  10. Xu He, Shu Wang, Yunlong Xing, Pengbin Feng, Haining Wang, Qi Li, Songqing Chen, Kun Sun. “BinProv: Binary Code Provenance Identification without Disassembly.” 25th International Symposium on Research in Attacks, Intrusions, and Defenses (RAID 2022). Paper · Code
  11. Songsong Liu, Pengbin Feng, Jiahao Cao, Xu He, Tommy Chin, Kun Sun, Qi Li. “Consistency is All I Ask: Attacks and Countermeasures on the Network Context of Distributed Honeypots.” 19th Conference on Detection of Intrusions and Malware & Vulnerability Assessment (DIMVA 2022). Paper
  12. Xu He, Jiahao Cao, Shu Wang, Kun Sun, Lisong Xu, Qi Li. “Auter: Automatically Tuning Multi-layer Network Buffers in Long-Distance Shadowsocks Networks.” IEEE INFOCOM 2022. Paper
  13. Shengye Wan, Mingshen Sun, Kun Sun, Ning Zhang, Xu He. “RusTEE: Developing Memory-Safe ARM TrustZone Applications.” ACSAC 2020. Paper
  14. Shu Wang, Jiahao Cao, Xu He, Kun Sun, Qi Li. “When the Differences in Frequency Domain are Compensated: Understanding and Defeating Modulated Replay Attacks on Automatic Speech Recognition.” ACM CCS 2020. Paper
  15. Zhiqiang Zou, Xu He, A-xing Zhu. “An Automatic Annotation Method for Discovering Semantic Information of Geographical Locations from Location-Based Social Networks.” ISPRS International Journal of Geo-Information, 2019. Paper
  16. Zhiqiang Zou, Junjie Xiong, Xu He, Haihong Dai. “NUPT ST-data Miner: A Spatio-Temporal Data Analysis and Visualization System.” ICISA 2018. Paper
  17. Zhiqiang Zou, Xu He, Xingyu Xie, Qunying Huang. “Enhancing the Impression on Cities: Mining Relations of Attractions with Geo-tagged Photos.” CBDCom 2018. Paper
  18. Zhiqiang Zou, Xu He, Yinxia Wang, Jiagao Wu. “Sparse Representation of Sensor Network Signals Based on the K-SVD Algorithm.” MSWiM 2018. Paper

04

Experience

2025—Now

Senior Data Scientist

Visa Inc. · Ashburn, VA

2024

Senior Data Analyst Intern

Visa Inc. · Ashburn, VA

2022, 2023

R&D Intern

NIO USA · San Jose, CA

05

Awards