What is IPI-Scanner and how does it detect indirect prompt injection?

It's an open-source tool scanning docs for hidden attacks — regex, semantics, simulation — before your LLM reads them. Blocks 85%+ known CVEs fast.

How do I install and use IPI-Scanner for my RAG pipeline?

Pip install ipi-scanner, then ipi-scan file.pdf or ./docs/ --recursive. Python API for custom flows. Outputs scores: block reds.

Will IPI-Scanner replace full LLM security suites?

Nah, it's the input gatekeeper — pairs with output guards. But for data poisoning, it's essential, especially agents.

🤖 AI Dev Tools

IPI-Scanner: Shielding Your AI from Data-Poisoned Nightmares Before They Strike

Prompt injections? Yeah, we knew about those. But indirect ones — poisoning docs your AI slurps up — that's the silent killer everyone's ignoring. Enter IPI-Scanner, the open-source hero rewriting AI security.

theAIcatchup Apr 10, 2026 4 min read

IPI-Scanner dashboard showing risk scores for scanned documents blocking indirect prompt injections

⚡ Key Takeaways

80% of prompt injections are indirect, targeting data not prompts — IPI-Scanner catches them pre-LLM. 𝕏
Open-source, fast (100ms/doc), 85%+ accuracy on real CVEs like EchoLeak and Copilot RCE. 𝕏
3-tier system with context scoring; v0.3 simulates attacks for 90% precision — the antivirus for AI's new era. 𝕏

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#IPI-Scanner #LLM vulnerabilities #RAG security #agentic AI #indirect prompt injection #llm-security #prompt injection

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Originally reported by dev.to

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