collaborators

5 papers

cs.CR2026

Gradient Immunity: Null-Space Resistance to Malicious Fine-Tuning

Yuxuan Huang, Xingyu Zeng, Tianhang Zheng +1

Released aligned large language models remain vulnerable to malicious downstream finetuning. Existing defenses are largely designed for the fine-tuning-as-a-service (FTaaS) paradig…

cs.CR2026

DARWIN: Evolving Jailbreak Adversary and Guardrail for LLM Safety Evaluation and Protection

Weiwei Qi, Zefeng Wu, Zhilin Guo +5

Most existing LLM safety evaluation and defense methods are static: jailbreak vulnerabilities are assessed with fixed attacks, and guardrails are trained on fixed malicious-prompt…

cs.CR2026

DataShield: Uncovering Risky Fine-Tuning Data Across LLMs Through Consensus Subspace Alignment

Zefeng Wu, Weiwei Qi, Jielong Chen +6

Fine-tuning large language models (LLMs) on domain-specific datasets has become a standard paradigm for adapting LLMs to specialized applications. However, recent work has shown th…

cs.SD2026

HoliAntiSpoof: Audio LLM for Holistic Speech Anti-Spoofing

Xuenan Xu, Yiming Ren, Liwei Liu +5

Recent advances in speech synthesis and editing have made speech spoofing increasingly challenging. However, most existing methods treat spoofing as binary classification, overlook…

cs.AI2025

MENTOR: A Metacognition-Driven Self-Evolution Framework for Uncovering and Mitigating Implicit Domain Risks in LLMs

Liang Shan, Kaicheng Shen, Wen Wu +9

Ensuring the safety of Large Language Models (LLMs) is critical for real-world deployment. However, current safety measures often fail to address implicit, domain-specific risks. T…