AI Safety Reports folio mark

AI Safety Reports

SAF06

Release v2.1

Prompt Injection and Untrusted Documents

A document-processing guide to keeping source content separate from authority. Covers intake, extraction checks, restricted context, source-linked answer review and evidence from harmless simulations, including cases involving supplier documents and conflicting knowledge versions.

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Security reviewers examine an untrusted document at an AI workflow boundary.

What you can put into practice

  • Define the task and permitted processing route.
  • Check document intake, extraction and context boundaries.
  • Review answers for contamination, omissions and unsupported certainty.
  • Distinguish detector observations, permissions, action results and evidence gaps.
  • Define the task and permitted processing route.
  • Check document intake, extraction and context boundaries.
  • Review answers for contamination, omissions and unsupported certainty.
  • Distinguish detector observations, permissions, action results and evidence gaps.

Where this guidance helps

  • Task authority and untrusted source content
  • Route design, intake and extraction
  • Context limits and answer review
  • Task authority and untrusted source content
  • Route design, intake and extraction
  • Context limits and answer review

Tools you can adapt

  • route map
  • intake register
  • context manifest
  • extraction check
  • source claim record
  • test matrix
  • evidence log
  • action decision
  • incident record
  • provider question record
  • practical assessment
  • operating procedure
  • Completion order and withheld evidence
  • Per-record status vocabulary
  • route map
  • intake register
  • context manifest
  • extraction check
  • source claim record
  • test matrix
  • evidence log
  • action decision
  • incident record
  • provider question record
  • practical assessment
  • operating procedure
  • Completion order and withheld evidence
  • Per-record status vocabulary

Fictional examples, practical decisions

  • Supplier inputs reviewed against a defined task contract.
  • A restricted knowledge collection with conflicting versions and incomplete action evidence.
  • Supplier inputs reviewed against a defined task contract.
  • A restricted knowledge collection with conflicting versions and incomplete action evidence.

Inside the handbook

View the handbook contents +

Condensed topic outline:
  • Task authority and untrusted source content
  • Route design, intake and extraction
  • Context limits and answer review
  • Safe testing and detector limitations
  • Supplier-document and restricted-retrieval fictional cases
  • Evidence interpretation, troubleshooting and adoption

How this report was prepared

AI-assisted educational material with fictional worked cases, editable records and practice exercises. It is not an independent product test or a claim of certification. Source organizations do not endorse the publication.

AI-assisted educational material with fictional worked cases, editable records and practice exercises. It is not an independent product test or a claim of certification. Source organizations do not endorse the publication.

Scope and limitations

Educational guidance, not legal advice, a professional security assessment or certification. No guarantee of security, compliance or loss prevention. All case organizations, records and outcomes are fictional; practice does not establish that a real system is safe or authorized. Fixtures are harmless text and CSV, not malware or live attacks. Simulated results do not validate a real product or establish immunity to prompt injection.

Questions before you begin

What formats are included? PDF and Word reading materials, with editable CSV and Markdown tools and practice materials. Do exercises use live systems? No. Use the supplied fictional materials; do not connect real accounts, send messages, make payments or upload confidential records to complete them.

What formats are included? PDF and Word reading materials, with editable CSV and Markdown tools and practice materials.

Do exercises use live systems? No. Use the supplied fictional materials; do not connect real accounts, send messages, make payments or upload confidential records to complete them.

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