enforcement mechanism

A policy-backed, operative control — technical, administrative, or architectural — that actively applies and upholds a stated security or privacy rule at the point where a decision must be made, rather than merely documenting or recommending it. What distinguishes it from a policy or a guideline is that it *acts*: it intercepts, permits, blocks, filters, or routes subjects and objects in real time in accordance with defined authorizations. In the information-flow context in which the phrase most frequently appears in authority documents, enforcement mechanisms are the concrete system components — firewalls, guards, routers, encrypted tunnels, packet or content filters, and similar boundary-protection devices — that translate an information-flow control policy into operational decisions about what data may move between which sources and destinations; the term is also used more broadly (e.g., in access control, privacy, and compliance governance) to name any operative control that gives binding effect to a rule that would otherwise be merely advisory.

Advisory only. A term this product ships is defined by an authority document, not by a search result.