In NAF 4 and UAF, a SecurityEnclave is a collection of information systems connected by one or more internal networks under the control of a single authority and security policy. The systems may be structured by physical proximity or by function, independent of location.

Since NAF 4 is built using the UAF metamodel, SecurityEnclave is available in NAF 4 as a definition type. It is not available to be modeled on a diagram type in NAF 4, since NAF 4 does not specifically include Security views.