PRISM: A Lightweight Method for Jailbreak Detection via Prompt-Response Semantic Coherence Scoring in LLMs
Detecting whether a jailbreak attack against a large language model (LLM) has succeeded is a challenging problem in AI security. Existing approaches rely on brittle string matching, expensive LLM-based judges, or task-specific classifiers that often fail to generalize. This paper investigates whether semantic coherence...