@inproceedings{blagoev-etal-2026-hail, title = "Hail to the Thief: Exploring Attacks and Defenses in Decentralised {GRPO}", author = "Blagoev, Nikolay and Ersoy, Oguzhan and Chen, Lydia", 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.1950/", pages = "39130--39148", ISBN = "979-8-89176-395-1" }