MetaGuardian: Enhancing Voice Assistant Security through Advanced Acoustic Metamaterials. - Zhiyuan Ning 003; Zheng Wang 001; Zhanyong Tang (MobiCom, 2025)

CostSphere: A Cost Model-Driven Privacy-Preserving Machine Learning Framework with Network Context Adaptation. - Yuntian Chen; Zhanyong Tang; Tianpei Lu; Bingsheng Zhang; Zhiying Shi; Zhiyuan Ning 003 (IACR Cryptol. ePrint Arch., 2025)

A Portable and Stealthy Inaudible Voice Attack Based on Acoustic Metamaterials. - Zhiyuan Ning 003; Juan He 007; Zhanyong Tang; Weihang Hu; Xiaojiang Chen (IEEE Trans. Inf. Forensics Secur., 2025)

Stealthy Voice Eavesdropping with Acoustic Metamaterials: Unraveling a New Privacy Threat. - Zhiyuan Ning 003; Zhanyong Tang; Juan He 007; Weizhi Meng 001; Yuntian Chen (CoRR, 2025)

SuperEar: Eavesdropping on Mobile Voice Calls via Stealthy Acoustic Metamaterials. - Zhiyuan Ning 003; Zhanyong Tang; Juan He 007; Weizhi Meng 001; Yuntian Chen; Jie Zhang 028; Zheng Wang 001 (WWW, 2026)

Before the Mic: Physical-Layer Voiceprint Anonymization with Acoustic Metamaterials. - Zhiyuan Ning 003; Zhanyong Tang; Xiaojiang Chen; Zheng Wang 001 (CoRR, 2026)