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Yunyi Zhang
Ph.D., National University of Defense Technology
zhangyyzyy[at]nudt.edu.cn

Yunyi Zhang is a Ph.D. candidate as a member of joint Ph.D. program between National University of Defense Technology (advised by Professors Min Zhang) and Tsinghua University (advised by Professors Haixin Duan and Baojun Liu). His research interests include network security, internet measurement, and emerging cyberspace security threats. He has published papers at top academic venues, including USENIX Security, ACM CCS, ACM IMC, ISOC NDSS, IEEE TDSC and IEEE TDSC. His academic research results have achieved real-world impact by receiving bonus from several vendors, including Baidu, Tencent, Micrcsoft, Yahoo, Alibaba and Amazon, etc.

Interests

  • Network Security
  • DNS Security
  • Internet Measurement
  • Underground Economy
  • LLM Privacy and Security

Academia

National University of Defense Technology
2021 - 2025
Ph.D. Cyberspace Security
supervised by Prof. Min Zhang
Tsinghua University
2023 - 2025
joint Ph.D. program Cyberspace Security
supervised by Prof. Haixin Duan and Baojun Liu
Sun Yat-sen University
2018 - 2021
M.Sc. Cyberspace Security
supervised by Prof. Shuyuan Jin
Qingdao University of Science and Technology
2014 - 2018
B.Sc. Computer Science and Technology

News

Recent Publications

see my google scholar for the latest list; (*) with equal contribution
Misty Registry: An Empirical Study of Flawed Domain Registry Operation, 2025, The 34th USENIX Security Symposium
Mingming Zhang* , Yunyi Zhang*, Baojun Liu, Haixin Duan, Min Zhang, Fan Shi, Chengxi Xu
NOKEScam: Understanding and Rectifying Non-Sense Keywords Spear Scam in Search Engines, 2025, The 34th USENIX Security Symposium
Mingxuan Liu* , Yunyi Zhang*, Lijie Wu, Baojun Liu, Geng Hong, Yiming Zhang, Hui Jiang, Jia Zhang, Haixin Duan, Min Zhang, Wei Guan, Fan Shi, Min Yang
HADES Attack: Understanding and Evaluating Manipulation Risks of Email Blocklists, 2024, The Network and Distributed System Security Symposium (NDSS)
Ruixuan Li , Chaoyi Lu, Baojun Liu, Baojun Liu, Yunyi Zhang, Geng Hong, Haixin Duan, Yanzhong Lin, Qingfeng Pan, Min Yang, Jun Shao
Cross the Zone: Toward a Covert Domain Hijacking via Shared DNS Infrastructure, 2024, The 33th USENIX Security Symposium
Yunyi Zhang , Mingming Zhang, Baojun Liu, Zhan Liu, Jia Zhang, Haixin Duan, Min Zhang, Fan Shi, Chengxi Xu
Into the Dark: Unveiling Internal Site Search Abused for BlackHat SEO, 2024, The 33th USENIX Security Symposium
Yunyi Zhang , Mingxuan Liu, Baojun Liu, Yiming Zhang, Haixin Duan, Min Zhang, Hui Jiang, Yanzhe Li, Fan Shi
Understanding and Characterizing the Adoption of Internationalized Domain Names in Practice, 2024, IEEE Transactions on Dependable and Secure Computing
Yunyi Zhang , Chengxi Xu, Fan Shi, Miao Hu, Min Zhang, Yuwei Li, Zhijie Xie
Rethinking the Security Threats of Stale DNS Glue Records, 2024, The 33th USENIX Security Symposium
Yunyi Zhang* , Baojun Liu*, Haixin Duan, Min Zhang, Xiang Li, Fan Shi, Chengxi Xu and Eihal Alowaisheq
Wolf in Sheep's Clothing: Evaluating Security Risks of the Undelegated Record on DNS Hosting Services, 2023, ACM Internet Measurement Conference (IMC)
Fenglu Zhang* , Yunyi Zhang*, Baojun Liu, Eihal Alowaisheq, Lingyun Ying, Xiang Li, Zaifeng Zhang, Ying Liu, Haixin Duan and Min Zhang