Author

Ji-Guo Yu

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Preprint Aug 2026

UiAs: User-Independent 3D Facial Anti-Spoofing via Multi-modal Wireless Signals

Face authentication is widely deployed in security-sensitive applications, while increasingly realistic 3D spoofing attacks pose growing threats. High-fidelity 3D masks can reproduce facial appearance and geometry but cannot replicate the intrinsic physical responses of living tissue, which can be actively probed by wi...

Zhiwei Chen, Lebin Lyu, Yi-Mo Zhang et al. · 0 citations

Review Sep 2026

Implicit Manipulation for Skill Selection in LLM Agents with Semantic Matching

This work identifies a new implicit attack surface for skill selection: even when the user prompt and skill description appear benign in isolation, their semantic relationship can still be strategically shaped to favor an attacker-chosen skill.

Qi-Kai Wang, Yong-Zhao Zhang, Zhi-Wei Chen et al. · 1 citation