👋 Hey, I’m Xuan
I am a CS PhD candidate at Purdue University, advised by Prof. Xiangyu Zhang.
My research interests include:
- LLM Red-teaming
- RL for Security
- LLM Agents Evaluation
- Backdoor Attacks and Defenses
Specifically, I study attacks and defenses for LLMs, LLM agents, and RL systems, including jailbreaking; backdoor attacks, detection, and removal; and broader adversarial robustness. I combine reinforcement learning with programmatic test generation to discover vulnerabilities and failure modes and to develop principled defenses that harden models and agents. Recently, I’m also working on building security-focused LLM agents and stress-testing of LLM agents across key evaluation dimensions.