I am a Professor and Associate Head of the Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, and Director of PolyU Research Centre for Privacy and Security Technologies in Future Smart Systems (RCPST). My research interests include adversarial machine learning, data privacy, database and network security, mobile, spatiotemporal and social databases. Aside from research, I lead the ASTAPLE lab, and the PolyU CTF Team. I am a senior member of IEEE, ACM, and CCF. I am also a certified Cisco CCNA Security Trainer. More information can be found in my CV.
Sticky Posts
(New 2026!) Multiple PhD students, research assistants, and postdocs wanted
I have openings for 2~3 PhD students (2026 in-take), and 4+ research assistants/postdoc researchers (immediately available) in the field of ...
Recent Posts
One Paper Accepted by INFOCOM 2026
Our paper “BeeKeeper: Securing Cross-Technology Communication via Channel-Aware Dual-Binding” is accepted by INFOCOM 2026. Congratulations to Weizheng! ...
Two Papers Accepted by USENIX Security ‘26
Our papers "United We Defend: Collaborative Membership Inference Defenses in Federated Learning" and “The Prompt Stealing Fallacy: Rethinking Metrics, Attacks, ...
One Paper Accepted by NDSS 2026
Our paper “WiFinger: Fingerprinting Noisy IoT Event Traffic Using Packet-level Sequence Matching” is accepted by NDSS 2026. Congratulations to Ronghua! ...
Two Papers Accepted by KDD 2026
Our papers “‘Adversarial Signed Graph Learning with Differential Privacy” and "Communication-efficient Federated Graph Classification via Generative Diffusion Modeling" are accepted ...
Four Papers Accepted by AAAI ’26
Our papers "DIFT: Protecting Contrastive Learning against Data Poisoning Backdoor Attacks", "Class-feature Watermark: A Resilient Black-box Watermark Against Model Extraction ...
Two Papers Accepted by NeurIPS 2025
Our papers “‘Virus Infection Attack on LLMs: Your Poisoning Can Spread “VIA” Synthetic Data” and "Toward Efficient Inference Attacks: Shadow ...
GRF Research Grant Awarded
A research project entitled "Privacy-Preserving Multimodal Data Management: A Database Perspective" has been awarded by Research Grant Council, HKSAR with ...
(New 2026!) Multiple PhD students, research assistants, and postdocs wanted
I have openings for 2~3 PhD students (2026 in-take), and 4+ research assistants/postdoc researchers (immediately available) in the field of ...
Two Papers Accepted by ICCV 2025
Our papers “‘Reminiscence Attack on Residuals: Exploiting Approximate Machine Unlearning for Privacy” and "Federated Continuous Category Discovery and Learning" are ...
