Why it matters

Prompt injection is #1 LLM security risk. Layered defense is essential.

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The architecture

Separate system + user.

Sanitize inputs.

Structured outputs.

Monitor anomalies.

Prompt injection defenseSeparatesystem + user promptSanitizeinput, escapeStructured outputsJSON schemaOWASP LLM01 is prompt injection; layered defense is best practice
Prompt injection defense.
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How it works end to end

OWASP LLM01.

Structured outputs (JSON schema).

Monitor anomalies.