2 papers
cs.CR2026
Behind the Refusal: Determining Guardrail Activation via Behavioral Monitoring
William Hackett, Peter Garraghan
As Large Language Models (LLMs) and agentic systems become integrated into real-world applications, ensuring their safety and security is critical. Guardrail systems that detect an…
cs.CR2025
Bypassing LLM Guardrails: An Empirical Analysis of Evasion Attacks against Prompt Injection and Jailbreak Detection Systems
William Hackett, Lewis Birch, Stefan Trawicki +2
Large Language Models (LLMs) guardrail systems are designed to protect against prompt injection and jailbreak attacks. However, they remain vulnerable to evasion techniques. We dem…