Tag #vigil 1 post tagged vigil. ← All topics tools Prompt-Injection Detectors Compared: Rebuff, Vigil, and LLM Guard A practitioner comparison of open-source prompt-injection detectors — Rebuff, Vigil, and LLM Guard's PromptInjection scanner — including detection architecture, maintenance status, and which to actually deploy in 2026. May 17, 2026