Walk A RAG Prompt-Injection Incident
Apply a staged response to an indirect prompt-injection incident in a retrieval-augmented AI system.
The incident A customer PDF embedded with malicious instructions is retrieved by the procurement assistant. Three users saw answers that included internal contact-list suggestions, and the assistant has a directory lookup tool. The key risk is not the PDF by itself. It is the path from untrusted retrieved text to privileged data and tool use. Decision walk Triage -> Contain -> Recover Respond to indirect prompt injection by separating evidence gathering from exposure reduction. Do not let investigation become another execution path. A narrower blast radius and a reusable control. Treat retrieved content as hostile until controls prove otherwise; the…
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