What Is LLM (Large Language Model) Jailbreak?

An LLM jailbreak is a prompt engineered to bypass a language model's safety training, distinct from hacking a server or stealing model weights. This guide covers how jailbreaks work, how they differ from prompt injection, why they matter more once AI agents can act, and the defense-in-depth practices organizations use to reduce risk, backed by OWASP, NIST, Anthropic, and OpenAI research.