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 IJCAI 2026
Our paper "LURE: Latent Space Unblocking for Multi-Concept Reawakening in Diffusion Models" is accepted by IJCAI'2026. Congratulations to Mengyu! ...
Three Papers Accepted by ICML‘26
Our papers "Differentially Private Cross-Silo Recommendation from Implicit Feedback”, “Unlearning Isn’t Deletion: Investigating Reversibility of Machine Unlearning in LLMs”, and ...
One Paper Accepted by ACM CCS 2026
Our paper “Hitchhiking on Inherent Randomness: Diffusion-based Graph Generation under Differential Privacy” is accepted by ACM CCS 2026. Congratulations to ...
Two Papers Accepted by ACL‘26
Our papers "From Domains to Instances: Dual-Granularity Data Synthesis for LLM Unlearning" and “AudioStealer: Extracting Audio Prompts via Shapley Value-Guided ...
One Paper Accepted by CVPR 2026
Our paper “SEBA: Sample-Efficient Black-Box Attacks on Visual Reinforcement Learning” is accepted by CVPR 2026. Congratulations to Tairan! ...
Appointed as Senior Area Editor (TIFS)
I am appointed as Senior Area Editor of IEEE Transactions on Information Forensics and Security (TIFS) ...
Two Papers Accepted by WWW‘26
Our papers "How Green Is Your Login? A Cross-Protocol Benchmark of Authentication Energy & Latency" and “Decoding Web Memorization: A ...
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! ...
