@inproceedings{wu-etal-2026-echo, title = "{ECHO}: Replacing the Compliance Proxy with Response Harmfulness in Optimization-Based Jailbreak Attack", author = "Wu, Yuanwei and Huang, Lingdong and Mao, Yunlong and Wang, Kanye Ye and Hua, Jingyu and Zhong, Sheng", editor = "Lee, Hung-Yi and Dev, Sunipa and Li, Jessy and Elliott, Desmond", booktitle = "Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.emnlp-main.892/", pages = "20576--20590", ISBN = "979-8-89176-459-0" }