Data Bricklaying Diary

Nov 8, 2026 · Information Security

AI Assistants Must Enforce User Permissions, Not Service Account Privileges

This article explains why connecting data through ontologies doesn't automatically grant access permissions, detailing how AI assistants must enforce per-request user authorization, restrict data retrieval at the service layer, prevent inference attacks from aggregated data, and validate boundaries through rigorous testing including account switching and parameter manipulation.