Hello👋! I am Mingzhe Li(李明哲), a first-year Ph.D student at University of Massachusetts, Amherst, advised by Prof. Shiqing Ma.

I received my B.Eng in Cyberspace Security from Wuhan University in 2025. Before my time at WHU, I completed three years of study at the No.1 Middle School Affiliated to Central China Normal University （华中师大一附中）.

My research focuses on artificial intelligence security and privacy, Responsible Generative AI, Large Language Models.

Actively seeking Summer 2026 internship opportunities — please feel free to reach out!

🔥 News

• 2025.11  🚀🚀 PROMPTMINER released — code is now open-sourced.
• 2025.04  🏆🏆 I am selected as an outstanding undergraduate graduate.
• 2025.01:  🎉🎉 1 paper is accepted to Usenix Security 2025.
• 2024.12:  🎉🎉 1 paper is accepted to IEEE TIFS 2024.

📝 Publications

• PROMPTMINER: Black-Box Prompt Stealing against Text-to-Image Generative Models via Reinforcement Learning and Fuzz Optimization

  Mingzhe Li, Renhao Zhang, Zhiyang Wen, Siqi Pan, Bruno Castro da Silva, Juan Zhai, Shiqing Ma

  Preprint

• EDITOR: Effective and Interpretable Prompt Inversion for Text-to-Image Diffusion Models

  Mingzhe Li, Gehao Zhang, Zhenting Wang, Guanhong Tao, Siqi Pan, Richard Cartwright, Juan Zhai, Shiqing Ma

  Preprint

• PAPILLON: Efficient and Stealthy Fuzz Testing-Powered Jailbreaks for LLMs

  Xueluan Gong*, Mingzhe Li*, Yilin Zhang, Fengyuan Ran, Chen Chen, Yanjiao Chen, Qian Wang, Kwok-Yan Lam

  Usenix Security 2025, * indicates equal contribution

• Augmenting Model Extraction Attacks against Disruption-Based Defenses

  Xueluan Gong, Shuaike Li, Yanjiao Chen, Mingzhe Li, Rubin Wei, Qian Wang and Kwok Yan Lam

  Transactions on Information Forensics & Security (TIFS)

🎖 Honors and Awards

• Outstanding Undergraduate Graduate, WHU Apr. 2025
• National Second Prize in Contemporary Undergraduate Math Contest in Modeling, Top 2% nationwide Nov. 2023
• Second Prize in the Chinese Collegiate Computing Competition Jun. 2023
• Second Prize in the “Huazhong Cup” College Student Mathematics Modeling Challenge May 2023
• Third Prize in the Hubei Province College Student Mathematics Competition Mar. 2023
• “Merit Student” Honorary Title, Twice Sept. 2023 & Sept. 2022
• “Active Participant in Social Activities” Honorary Title Jun. 2022

📖 Educations

• 2025.09 - Present, Ph.D Student, University of Massachusetts, Amherst
• 2021.09 - 2025.06, Undergraduate, School of Cyber Science and Engineering, Wuhan University
• 2018.09 - 2021.06, Senior Middle School Student, the No.1 Middle School Affiliated to Central China Normal University

💻 Internships

• 2025.02 - 2025.06, ByteDance, Shenzhen, China.