| Information flow control regulates where information is allowed to travel within an information system and between information systems (as opposed to who is allowed to access the information), without explicit regard to subsequent access to that information.
Information flow enforcement mechanisms compare security attributes on all information (data content and data structure) and source and destination objects, and respond appropriately (e.g., block, quarantine, alert administrator) when the mechanisms encounter information not explicitly allowed by the information flow policy.
Security policy filters are defined by the organization and include, dirty word filters, file type checking filters, structured data filters, unstructured data filters, metadata content filters, and hidden content filters.
Information flow control only applies to a CDS. An AS is not a CDS.
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