Defenses Against Prompt Attacks Learn Surface Heuristics

Shawn Li, Chenxiao Yu, Zhiyu Ni, Hao Li, Charith Peris, Chaowei Xiao, Yue Zhao. Defenses Against Prompt Attacks Learn Surface Heuristics. In Maria Liakata, Viviane P. Moreira, Jiajun Zhang 0001, David Jurgens, editors, Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), ACL 2026, San Diego, California, United States, July 2-7, 2026. pages 10970-10987, Association for Computational Linguistics, 2026. [doi]

Abstract

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