What Is a Prompt Injection Attack?

11 minutesIntermediateBuilderIBM TechnologyAI Safety & Data Privacy

IBM Technology. Jeff Crume's "buy an SUV for $1" example is the cleanest 10-minute explanation of why direct and indirect prompt injection are different problems, and why filtering can't fully solve either. It pairs directly with the article's argument that you need least-privilege scopes, a dedicated agent account, and a human in the loop on anything irreversible — not a cleverer system prompt.

AI Expert note

Treat this as conceptual guidance. Do not use real company data until permissions, retention, logging and human-review boundaries are clear.

What you should get from this

Distinguish direct and indirect prompt injection and why filtering alone is not enough.

Watch or know first

None — watchable cold.

Last reviewed: May 18, 2026

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