I am a 3rd year PhD candidate at RMIT University, working under the supervision of Professor Xun Yi, Professor Ibrahim Khalil, and Dr Xiaoning (Maggie) Liu. Prior to that, I worked as a research assistant at The University of Queensland (2021-2022). I received a Master of Data Science degree at The University of Queensland (2020-2021).

My research focuses on Privacy-Preserving Machine Learning, with an emphasis on utilizing novel cryptographic techniques, such as Homomorphic Encryption and Multi-party Computation, to enable secure and efficient machine learning inference.

Selected Publications

• SIGuard: Guarding Secure Inference with Post Data Privacy
  Xinqian Wang, Xiaoning Liu, Shangqi Lai, Xun Yi, Xingliang Yuan
  Network and Distributed System Security Symposium (NDSS, CORE A*) 2025
  Link will be presented…

• Model Extraction Attacks on Privacy-Preserving Deep Learning based Medical Services
  Xinqian Wang, Xiaoning Liu, Xun Yi, Xuechao Yang, Iqbal Gondal
  The International Web Information Systems Engineering (WISE, CORE B) 2024
  Link will be presented…

• Model Extraction Attack on MPC Hardened Vertical Federated Learning
  Xinqian Wang, Xiaoning Liu, Xun Yi
  The International Conference on Provable and Practical Security (ProvSec, CORE C) 2024
  Link will be presented…

News

• [Oct 2025] As a guest lecturer, I was honoured to give a talk in Week 11 of Dr Mojtaba Shahin’s course (Semester 2, 2025). I designed the curriculum by introducing the topics of AI systems’ security and safety.
• [Sep 2025] I receive the 2024 reviewer certificates for IEEE TKDE and IEEE TDSC.
• [Aug 2025] As a guest lecturer, I was honoured to give a talk in Week 6 of NTE2547/2580 Security Testing (Semester 2, 2025). I designed the curriculum by introducing the topics of AI security.
• [July 2025] As a tutor, our course, INTE2401/2402 Cloud Security (Semester 2, 2025), has been awarded the Top Five Course with the highest OSI in STEM College. Thank you to all enrolled students and every member of the teaching team.
• [Feb 2025] I present my paper at NDSS 2025.
• [Dec 2024] As a tutor, our course, NTE2547/2580 Security Testing (Semester 2, 2024), has been awarded the Top Five Course with the highest OSI in STEM College. A big thank you to everyone who enrolled in the course and to all the members of the teaching team.
• [Dec 2024] I present my paper at WISE 2024.
• [Nov 2024] I present a poster at the School of Computing Technologies’ Doctoral Colloquium.
• [Sep 2024] I present my paper at ProvSec 2024.
• [Nov 2023] I present my ongoing research at the RMIT HDR Cyber Conference.
• [July 2023] I participate as a student volunteer at ASIA CCS 2023.

Teaching

• RMIT University
  • Tutor, S1, 2025, Cloud Security (INTE2401/2402).
  • Tutor, S1, 2024, Cloud Security (INTE2401/2402).
  • Tutor, S2, 2024, Security Testing (INTE2547/2580).

Reviewer

• Conference
  • Network and Distributed System Security Symposium (NDSS, CORE A*): 2025
  • USENIX Security Symposium (USENIX, CORE A*): 2025, 2026
  • IEEE Symposium on Security and Privacy (S&P, CORE A*): 2025
  • Conference on Neural Information Processing Systems (NIPS, CORE A*): 2023
  • ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD, CORE A*): 2025, 2026
  • IEEE European Symposium on Security and Privacy (Euro S&P): 2025
  • ACM ASIA Conference on Computer and Communications Security (ASIA CCS, CORE A): 2025
  • International Conference on Distributed Computing Systems (ICDCS, CORE A): 2024
  • International Web Information Systems Engineering (WISE, CORE B): 2024, 2025
• Journal
  • IEEE Transactions on Knowledge and Data Engineering (TKDE, CORE A*): 2023, 2024, 2025
  • IEEE Transactions on Dependable and Secure Computing (TDSC, CORE A): 2023