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Amazon Q adds document-level ACLs for S3 knowledge base access control

New fine-grained permissions let you restrict sensitive docs to authorized users only.

Deep Dive

Amazon Quick offers document-level ACL support for S3 knowledge bases, enabling organizations to restrict access to specific documents or folders. With deny-by-default behavior, only explicitly authorized users see sensitive content. Two configuration methods are available: a global ACL file for stable folder structures, or document-level metadata for frequently changing permissions. This approach allows safe ingestion of full document libraries while meeting compliance and data governance requirements.

Key Points
  • Document-level ACLs for S3 knowledge bases in Amazon Q enable fine-grained permissions at document or folder level.
  • Two configuration methods: global ACL file (folder-level, stable structures) and document-level metadata files (frequent changes, minimal reindex).
  • Deny-by-default ensures only explicitly granted access; reindex scope varies between full prefix (global) and single document (metadata).

Why It Matters

Enables secure AI search over sensitive documents without compromising compliance or data governance.