Purpose Limitation

Purpose limitation is a familiar privacy obligation and an awkward one for AI, because indexing content for retrieval is arguably a new purpose for data gathered to run a business process. The awkwardness is sharpest with personal data collected under a specific notice: making it answerable by a general-purpose assistant may exceed what the subject was told. Compliance usually means excluding categories from the AI surface rather than relying on downstream refusals, since the purpose is set by what the system can do with the data, not by what it usually does.

Excluding a category from the AI index in Centralpoint is a classification decision applied during ingestion, so material collected for a limited purpose can remain fully available to the business process it was collected for while never becoming part of the retrieval surface.