@inproceedings{yan-etal-2025-system, title = "System Prompt Hijacking via Permutation Triggers in {LLM} Supply Chains", author = "Yan, Lu and Cheng, Siyuan and Chen, Xuan and Zhang, Kaiyuan and Shen, Guangyu and Zhang, Xiangyu", editor = "Che, Wanxiang and Nabende, Joyce and Shutova, Ekaterina and Pilehvar, Mohammad Taher", booktitle = "Findings of the Association for Computational Linguistics: ACL 2025", month = jul, year = "2025", address = "Vienna, Austria", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/landing_page/2025.findings-acl.229/", pages = "4452--4473", ISBN = "979-8-89176-256-5" }