I am a faculty member at CISPA Helmholtz Center for Information Security. I sometimes also chime in iDRAMA Lab. Previously, I was a research group leader at CISPA. From January 2017 to December 2018, I was a postdoc with Michael Backes. Prior to that, I obtained my Ph.D. degree from University of Luxembourg on November 2016 under the supervision of Sjouke Mauw and Jun Pang. I obtained my bachelor (2009) and master (2012) degrees from Shandong University, China.

Research Areas

  • Trustworthy Machine Learning
  • Social Network Analysis
  • Misinformation, Hate Speech, and Memes

I’m always looking for motivated students to join my group. If you are interested, please write me an email (zhang@cispa.de).

What’s New

  • [November 2021] Hai Huang, Yiting Qu, and Raymond Si joined the team to start their PhD!
  • [October 2021] One paper titled “Get a Model! Model Hijacking Attack Against Machine Learning Models” got accepted in NDSS 2022!
  • [October 2021] One paper titled “Property Inference Attacks Against GANs” got accepted in NDSS 2022!
  • [October 2021] Zeyang Sha, Yixin Wu, and Ziqing Yang joined the team to start their PhD!
  • [September 2021] One paper titled “ML-Doctor: Holistic Risk Assessment of Inference Attacks Against Machine Learning Models” got accepted in USENIX Security 2022!
  • [September 2021] One paper titled “Inference Attacks Against Graph Neural Networks” got accepted in USENIX Security 2022!
  • [September 2021] One paper titled “Quantifying and Mitigating Privacy Risks of Contrastive Learning” got accepted in CCS 2021!
  • [September 2021] One paper titled “When Machine Unlearning Jeopardizes Privacy” got accepted in CCS 2021!
  • [September 2021] One paper titled “Membership Inference Attacks Against Recommender Systems” got accepted in CCS 2021!
  • [September 2021] I will join the TPC of WWW 2022!
  • [August 2021] Tianshuo cong joined the team to start his research visiting!
  • [July 2021] Joann Chen, Yihan Ma, Haiming Wang joined the team to start their PhD/research visiting!
  • [April 2021] I will join the TPC of USENIX Secruity 2022!
  • [April 2021] Yiyong Liu, Xinyue Shen, Minxing Zhang joined the team to start their PhD!
  • [March 2021] One paper titled “Membership Leakage in Label-Only Exposures” got accepted in CCS 2021!
  • [January 2021] One paper titled ““Go eat a bat, Chang!”: An Early Look on the Emergence of Sinophobic Behavior on Web Communities in the Face of COVID-19” got accepted in WWW 2021!
  • [December 2020] I will join as an external researcher in the Privacy-preserving Data Analysis interest group at The Alan Turing Institute!
  • [December 2020] One paper titled “PrivSyn: Differentially Private Data Synthesis” got accepted in USENIX Security 2021!
  • [November 2020] I will join the TPC of CCS 2021!
  • [November 2020] I will join the TPC of USENIX Secruity 2021!
  • [September 2020] One paper titled “Stealing Links from Graph Neural Networks” got accepted in USENIX Security 2021!