activity
20242026
collaborators

9 papers

cs.CY2026

When Medical Safety Alignment Fails: A Benchmark for Evaluating LLMs on High-Risk Medical Queries

Yige Li, Jun Sun, Wei Zhao +5

Large language models (LLMs) are increasingly used for medical and health-related questions, yet their safety in high-risk medical scenarios remains poorly understood. We introduce…

cs.CR2025

SoK: a Comprehensive Causality Analysis Framework for Large Language Model Security

Wei Zhao, Zhe Li, Jun Sun

Large Language Models (LLMs) exhibit remarkable capabilities but remain vulnerable to adversarial manipulations such as jailbreaking, where crafted prompts bypass safety mechanisms…

cs.CR2025

AutoBackdoor: Automating Backdoor Attacks via LLM Agents

Yige Li, Zhe Li, Wei Zhao +4

Backdoor attacks pose a serious threat to the secure deployment of large language models (LLMs), enabling adversaries to implant hidden behaviors triggered by specific inputs. Howe…

cs.CR2025

Q-MLLM: Vector Quantization for Robust Multimodal Large Language Model Security

Wei Zhao, Zhe Li, Yige Li +1

Multimodal Large Language Models (MLLMs) have demonstrated impressive capabilities in cross-modal understanding, but remain vulnerable to adversarial attacks through visual inputs…

cs.CL2025

Where Did It Go Wrong? Attributing Undesirable LLM Behaviors via Representation Gradient Tracing

Zhe Li, Wei Zhao, Yige Li +1

Large Language Models (LLMs) have demonstrated remarkable capabilities, yet their deployment is frequently undermined by undesirable behaviors such as generating harmful content, f…

cs.AI2025

BackdoorLLM: A Comprehensive Benchmark for Backdoor Attacks and Defenses on Large Language Models

Yige Li, Hanxun Huang, Yunhan Zhao +2

Generative large language models (LLMs) have achieved state-of-the-art results on a wide range of tasks, yet they remain susceptible to backdoor attacks: carefully crafted triggers…