PromptCOS: Towards System Prompt Copyright Auditing for LLMs via Content-level Output Similarity
Authors: Yuchen Yang, Yiming Li, Hongwei Yao, Enhao Huang, Shuo Shao, Bingrun Yang, Zhibo Wang, Dacheng Tao, Zhan Qin | Published: 2025-09-03
Prompt validation
Prompt leaking
Model Extraction Attack