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Director

Portrait of Leo Zhang

A/Prof Leo Zhang

Associate Professor · Lab Director

Trustworthy AI, Applied cryptography, Adversarial and poisoning attacks, Privacy-preserving computation, Authentication

Leo Zhang is an Associate Professor at Griffith and directs RISE. He works on trustworthy AI, from adversarial, backdoor and privacy attacks to their defences, and on applied cryptography for privacy-preserving computation and authentication. He received the 2021 AISA Researcher of the Year award and is an Associate Editor of IEEE TDSC.

Academic members5

Portrait of Yanjun Zhang

Dr Yanjun Zhang

Senior Lecturer

Trustworthy AI, Privacy-preserving computation, Adversarial and backdoor attacks, Federated learning

Yanjun Zhang is a Senior Lecturer who joined Griffith from the University of Technology Sydney, after a PhD at the University of Queensland. Her research covers adversarial, backdoor, poisoning and privacy attacks and defences for machine learning, and privacy-preserving computation, published at IEEE S&P, NDSS, ICML and CVPR.

Portrait of Qinyi Li

Dr Qinyi Li

Lecturer

Cryptography, Lattice-based cryptography, Secure protocols, Network security

Qinyi Li has been a Lecturer at Griffith since 2019, after a PhD and postdoctoral fellowship at Queensland University of Technology. He works on lattice-based cryptography, searchable encryption and secure protocols, with papers at CRYPTO and ASIACRYPT, and coordinates Griffith's cryptography and network security courses.

Portrait of He Zhang

Dr He Zhang Joined 2026

Lecturer

Security for AI, Trustworthy graph learning, Machine unlearning, LLM watermarking, Fairness and privacy

He Zhang joined Griffith as a Lecturer in February 2026 from RMIT University, after a PhD at Monash University. He studies security for AI and trustworthy AI systems: privacy-preserving technologies, graph learning, machine unlearning and LLM watermarking, with work in ICML, NDSS, KDD and Proceedings of the IEEE.

Portrait of Yi Liu

Dr Yi Liu Joined 2026

Lecturer

LLM security, AI agent security, Software engineering and testing, Automated penetration testing

Yi Liu joined Griffith as a Lecturer in 2026, after a PhD at Nanyang Technological University and a role as AI Research Engineer at Quantstamp. He works on LLM and AI agent security and software testing, with papers at IEEE S&P, CCS, USENIX Security, NDSS and ICSE, and is a core contributor to PentestGPT.

Portrait of Wei Song

Dr Wei Song Joined 2026

Lecturer

Adversarial machine learning, AI watermarking, AI security for energy systems, Video LLM safety

Wei Song joined Griffith as a Lecturer in 2026, after a PhD and postdoctoral fellowship at UNSW Sydney. He works on adversarial machine learning, AI watermarking and AI security for energy systems, leads AUD 3.9M of funded work on secure AI for distributed energy assets and co-founded the spinout SunstackAI.

PhD students14

Higher Degree by Research candidates based at Griffith.

Jingming Dai

PhD student since 2026

With Leo Zhang

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Chenhong Luo

PhD student since 2024

Private and fairness-aware deep learning

With Leo Zhang

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Xiaomei Zhang

PhD student since 2024

Security risks in large language models

With Leo Zhang

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Xiaoyan Feng

PhD student since 2024

Detecting LLM-generated content

With Leo Zhang

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Zirui Gong

PhD student since 2024

Robustness, privacy and fairness trade-offs in federated learning

With Leo Zhang

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Yujiang Li

PhD student

With Yi Liu

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Visiting researchers2

Taehong Kim

Visiting Professor since 2025

Robust and efficient federated learning at the edge

With Leo Zhang

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Shuyu Chang

Visiting PhD student since 2024

Adversarial aspects of source-code vulnerabilities in AI systems

With Leo Zhang

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Jointly supervised9

Students enrolled at partner institutions and co-supervised by RISE members.

Show students at partner institutions

Di Mi

PhD student, Xiangtan University since 2024

Model extraction attacks and defences in image-to-image translation

With Leo Zhang

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Yuhang Zhou

PhD student, Harbin Institute of Technology, Shenzhen since 2023

Adversarial robustness and generalisation in computer vision

With Leo Zhang

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Jiaheng Wei

PhD student, RMIT University since 2022

Memorisation in deep learning and its interplay with privacy and security

With Leo Zhang

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Lulu Xue

MSc student, Huazhong University of Science and Technology since 2022

Privacy attacks and defences in federated learning

With Leo Zhang

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Yuxin Cao

PhD student, National University of Singapore

Safety evaluation of video large language models

With Wei Song

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Bangshuo Zhu

PhD student, UNSW Sydney

Robust and trustworthy defences for video LLMs

With Wei Song

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Haonan Zhong

PhD student, UNSW Sydney

Safety alignment of large language models

With Wei Song

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Zihao Xu

PhD student, UNSW Sydney

Jailbreak attacks and defences for LLMs

With Yi Liu

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Ziqi Ding

Master's student, UNSW Sydney

Next-generation CAPTCHA and human verification

With Wei Song, Yi Liu

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