@inproceedings{chang-etal-2026-know,
    title = "Know Thy Enemy: Securing {LLM}s Against Prompt Injection via Diverse Data Synthesis and Instruction-Level Chain-of-Thought Learning",
    author = "Chang, Zhiyuan  and
      Li, Mingyang  and
      Huang, Yuekai  and
      Jiang, Ziyou  and
      Jia, Xiaojun  and
      Xiong, Qian  and
      Wang, Junjie  and
      Li, Zhaoyang  and
      Wang, Qing",
    editor = "Liakata, Maria  and
      Moreira, Viviane P.  and
      Zhang, Jiajun  and
      Jurgens, David",
    booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {ACL} 2026",
    month = jul,
    year = "2026",
    address = "San Diego, California, United States",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-acl/2026.findings-acl.173/",
    pages = "3540--3561",
    ISBN = "979-8-89176-395-1"
}