Hi! I am Haoyang, a M.Sc. student in Computer Science and research assistant at TASR-Lab@HKU supervised by Prof. Ka-Ho Chow. Before that, I was a visiting student at PR-Lab@NJU under the supervision of Prof. Yueming Lyu and Dr. Yi Liu. I obtained my B.Eng. degree at School of Cyber Science and Engineering, Nanjing University of Science and Technology (NJUST) adviced by Prof. Zhichao Lian and Dr. Shuangquan Zhang. In addition, I had a wonderful time at Tencent exploring AI governance, security, and privacy.

My research interests mainly focus on the security and privacy of trustworthy large models, including jailbreaking, poisoning, membership inference, data extraction, backdoor (…) attacks and developing effective defenses to secure LLM, RAG, Agent systems, etc.

🔥 News

• 2026.07: I received Ph.D. offer from HKU, will continue my study here!
• 2026.06: 🎉🎉 Confundo, a RL-based RAG poisoning attack, was accepted by USENIX Security’26! (362/3028 ≈ 12%)
• 2025.08: 🎉🎉 MirrorMind, an Agentic interview simulator, was accepted by ADMA’25!
• 2025.06: I graduated from NJUST, and was honored with Outstanding Graduate!
• 2025.01: I received a scholarship of RMB 30,000 from CUHK-SZ!
• 2024.12: I completed my internship at Tencent, thanks to my mentor and colleagues!

📝 Selected Publications

Note: $\clubsuit$ means co-first author, and $\dagger$ means coresponding author.

Haoyang Hu, Zhejun Jiang, Yueming Lyu, Junyuan Zhang, Yi Liu, and Ka-Ho Chow, “Confundo: Learning to Generate Robust Poison for Practical RAG Systems.” The 35th USENIX Security Symposium, Baltimore, MD, USA. (362/3028 ≈ 12%) [paper] [code] [promptfoo]

Shiwen Liu, Xu Dong, Haoyang Hu$^\dagger$, and Di Wu. “MirrorMind: A Dual-Agent AI Interview Simulator Powered by LLMs.” The 21st International Conference on Advanced Data Mining and Applications, Kyoto, Japan. [paper] [code]

📖 Educations

• 2025.09 - present: M.Sc. in Computer Science, TASR-Lab, HKU, supervised by Prof. Ka-Ho Chow.
• 2025.03 - 2025.08: Visiting Student, PR-Lab, NJU, supervised by Prof. Yueming Lyu and Dr. Yi Liu.
• 2021.09 - 2025.06: B.Eng. in Cyber Science and Engineering, NJUST, supervised by Prof. Zhichao Lian and Dr. Shuangquan Zhang.

🎖 Honors and Awards

• 2026.06: DeltaX Fellowship, HKU
• 2025.04: Outstanding Graduate, NJUST
• 2025.03 & 2024.09 & 2024.03: First Prize at Outstanding Student Scholarship, NJUST
• 2025.03 & 2024.09: Success Scholarship, NJUST
• 2024.09 & 2024.04: Outstanding Class Cadre, NJUST
• 2024.03: Beyond Scholarship, NJUST
• 2023.11: Merit Student, NJUST

🎨 Miscs

💻 Internships

• 2025.09 - present: TASR-Lab, HKU
• 2025.03 - 2025.08: PR-Lab, NJU
• 2024.09 - 2024.12: ESG Coordination Office (ECO Lab), Tencent
• 2024.01 - 2024.02: Cloud Network Maintenance Center, China Telecom
• 2023.07 - 2023.08: Judicial Appraisal Institute, CINGHOO
• 2022.07 - 2022.08: DarkArmor Lab, MoreSec

🤖 Robotics

I have participated in 8 seasons of VEX-EDR (now known as VEX-V5) robotics competitions, selected awards including:

• First Prize 🏆 at World Robot Conference Contest (WRCC 2018).
• Second Runner-up 🥉 at World Robot Conference Contest (WRCC 2018).
• Runner-up 🥈 at National VEX Robotics Engineering Challenge.
• Glod Award 🏆 at VEX World Championship.
• Glod Award 🏆 at Asia-Pacific Robotics Championship.
• Champion 🥇 at National VEX Robotics Engineering Challenge.
• First Prize 🏆 at National VEX Robotics Engineering Challenge.

🌠 Students’ Activities

• 2024 - 2025: Permanent Representatives, Student Congress, NJUST
• 2021 - 2025: Secretary of the Reunion Branch, Major of 2021 in Cyber Science and Engineering, NJUST
• 2021 - 2025: Team Member, Basketball Team of the School of Cyber Science and Engineering, NJUST
• 2021 - 2025: Team Member, Badminton Team of the School of Cyber Science and Engineering, NJUST
• 2022 & 2023: Team Leader, Summer Social Practice Activity (provincial core project)