**A firewall for LLM traffic.** PromptWall inspects the text flowing *into* and *out of* a Large Language Model and catches the things that get apps built on LLMs into trouble: - 🧨 **Prompt injection** — "ignore all previous instructions and…" - 🔓 **Jailbreaks** — DAN, "developer mode", "you are now unrestricted", roleplay bypasses