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Tao (Tony) Ni

Postdoctoral Researcher
City University of Hong Kong
taoni2@cityu.edu.hk


About Me

I'm a Postdoc at the City University of Hong Kong, under the supervision of Prof. Cong Wang. Before that, I obtained Ph.D. from the City University of Hong Kong, my Master's degree from the Australian National University (ANU), and my Bachelor's degree from Shanghai Jiao Tong University (SJTU).

My research lies on the cross-discipline of Cybersecurity, IoT, and AI, with a primary focus on Building Secure, Reliable and Efficient Cyber-Physical Systems (CPSs) to achieve trustworthy computing and confidential sensing in critical cyber-infrastructures. My current research interests include: (1) CPS Security (e.g., AIoT, eXtended Reality(XR), medical facilities, embodied AI robots): [NDSS'25], [IEEE S&P'23], [CCS'23], [USENIX Security'23], [MobiCom'23a], [MobiCom'23b], [MobiSys'24], [UbiComp'22]; (2) Battery-Free & Energy-Efficient IoT: [MobiCom'24], [MobiHoc'24], [IPSN'23]; and (3) AI Security (e.g., auto vehicles, sensor-fusion on-device models): [Arxiv].

News

Main Publications

  1. [NDSS'25]   Non-intrusive and Unconstrained Keystroke Inference in VR Platforms via Infrared Side Channel
    Tao Ni, Yuefeng Du, Qingchuan Zhao, and Cong Wang
    In Proceedings of the 32nd Network and Distributed System Security Symposium, San Diego, CA, USA, Feb. 2025.
    PDF

  2. [CCS'23]   Recovering Fingerprints from In-Display Fingerprint Sensors via Electromagnetic Side Channel
    Tao Ni, Xiaokuan Zhang, and Qingchuan Zhao
    In Proceedings of the 30th ACM Conference on Computer and Communications Security, Copenhagen, Denmark, Nov. 2023.
    PDF BibTex Project   (Cybersecurity Best Practical Paper Award 2024 / People's Choice ASSET Poster Award 2024)

  3. [S&P (Oakland)'23]   Uncovering User Interactions on Smartphones via Contactless Wireless Charging Side Channels
    Tao Ni, Xiaokuan Zhang, Chaoshun Zuo, Jianfeng Li, Zhenyu Yan, Wubing Wang, Weitao Xu, Xiapu Luo, and Qingchuan Zhao
    In Proceedings of the 44th IEEE Symposium on Security and Privacy, San Francisco, CA, USA, May 2023.
    PDF BibTex

  4. [USENIX Security'23]   Eavesdropping Mobile App Activity via Radio-Frequency Energy Harvesting
    Tao Ni, Guohao Lan, Jia Wang, Qingchuan Zhao, and Weitao Xu
    In Proceedings of the 32nd USENIX Security Symposium, Anaheim, CA, USA, Aug. 2023.
    PDF BibTex Slides Demo

  5. [MobiCom'23]   Exploiting Contactless Side Channels in Wireless Charging Power Banks for User Privacy Inference via Few-shot Learning
    Tao Ni, Jianfeng Li, Xiaokuan Zhang, Chaoshun Zuo, Wubing Wang, Weitao Xu, Xiapu Luo, and Qingchuan Zhao
    In Proceedings of the 29th Annual International Conference on Mobile Computing and Networking, Madrid, Spain, Oct. 2023.
    PDF BibTex Project

  6. [MobiCom'23]   XPorter: A Study of the Multi-Port Charger Security on Privacy Leakage and Voice Injection
    Tao Ni, Yongliang Chen, Weitao Xu, Lei Xue, and Qingchuan Zhao
    In Proceedings of the 29th Annual International Conference on Mobile Computing and Networking, Madrid, Spain, Oct. 2023.
    PDF BibTex Demo

  7. [MobiHoc'24]   REHSense: Towards Battery-Free Wireless Sensing via Radio Frequency Energy Harvesting
    Tao Ni, Zehua Sun, Mingda Han, Yaxiong Xie, Guohao Lan, Zhenjiang Li, Tao Gu, and Weitao Xu
    In Proceedings of the 25th International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile Computing, Athens, Greece, Oct. 2024.
    PDF BibTex

Other Publications

  1. [UbiComp CPD Workshop'21]   A Simple and Fast Human Activity Recognition System Using Radio Frequency Energy Harvesting
    Tao Ni, Yongliang Chen, Keqi Song, and Weitao Xu
    Adjunct Proceedings of the 2021 ACM International Joint Conference on Pervasive and Ubiquitous Computing, Virtual, 2021
    PDF BibTex   (Best Paper Award)

  2. [MobiCom'24]   RF-Egg: An RF Solution for Fine-Grained Multi-Target and Multi-Task Egg Incubation Sensing
    Zehua Sun, Tao Ni, Yongliang Chen, Di Duan, Kai Liu and Weitao Xu
    In Proceedings of the 30th Annual International Conference on Mobile Computing and Networking, Washington D.C., DC, USA, Oct. 2024.
    PDF BibTex

  3. [ToSN]   FLoRa+: Energy-Efficient, Reliable, Beamforming-Assisted, and Secure Over-The-Air Firmware Update in LoRa Networks
    Zehua Sun, Tao Ni, Huanqi Yang, Kai Liu, Yu Zhang, Tao Gu, and Weitao Xu
    In ACM Transactions on Sensor Networks, 2024.
    PDF BibTex

  4. [IPSN'23]   FLoRa: Energy-Efficient, Reliable, and Beamforming-Assisted Over-The-Air Firmware Update in LoRa Networks
    Zehua Sun, Tao Ni, Huanqi Yang, Kai Liu, Yu Zhang, Tao Gu, and Weitao Xu
    In Proceedings of the 22nd International Conference on Information Processing in Sensor Networks, San Antonio, TX, USA, May 2023.
    PDF BibTex Demo

  5. [UbiComp/IMWUT'22]   SwipePass: Acoustic-based Second-factor User Authentication for Smartphones
    Yongliang Chen, Tao Ni, Weitao Xu, and Tao Gu
    In Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 2022.
    PDF BibTex Demo

  6. [MobiSys'24]   F2Key: Dynamically Converting Your Face into a Private Key Based on COTS Headphones for Reliable Voice Interaction
    Di Duan, Zehua Sun, Tao Ni, Shuaicheng Li, Xiaohua Jia, Weitao Xu, and Tianxing Li
    In Proceedings of the 22nd ACM International Conference on Mobile Systems, Applications, and Services, Tokyo, Japan, June 2024.
    PDF BibTex

  7. [ToSN]   mmSign: mmWave-based Few-Shot Online Handwritten Signature Verification
    Minda Han, Huanqi Yang, Tao Ni, Di Duan, Mengzhe Ruan, Yongliang Chen, Jia Zhang, and Weitao Xu
    In ACM Transactions on Sensor Networks, 2023.
    PDF BibTex

  8. [Preprint]   ITPatch: An Invisible and Triggered Physical Adversarial Patch against Traffic Sign Recognition
    Shuai Yuan, Hongwei Li, Xingshuo Han, Guowen Xu, Wenbo Jiang, , Tao Ni, Qingchuan Zhao, and Michael Yuguang Fang
    In Submission.
    PDF

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Conference Organizer

Technical Program Committee (TPC)

Journal Editor

Journal Reviewer

Artifact Evaluation Committee (AEC)


Honors and Awards


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