@inproceedings{ribeiro-etal-2025-proxy,
    title = "Proxy Barrier: A Hidden Repeater Layer Defense Against System Prompt Leakage and Jailbreaking",
    author = {Ribeiro, Pedro Schindler Freire Brasil  and
      Brito, Iago Alves  and
      Sousa, Rafael Teixeira  and
      F{\"a}rber, Fernanda Bufon  and
      Dollis, Julia Soares  and
      Galv{\~a}o Filho, Arlindo Rodrigues},
    editor = "Christodoulopoulos, Christos  and
      Chakraborty, Tanmoy  and
      Rose, Carolyn  and
      Peng, Violet",
    booktitle = "Findings of the Association for Computational Linguistics: EMNLP 2025",
    month = nov,
    year = "2025",
    address = "Suzhou, China",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/name-variant-enfa-fane/2025.findings-emnlp.528/",
    doi = "10.18653/v1/2025.findings-emnlp.528",
    pages = "9960--9975",
    ISBN = "979-8-89176-335-7"
}