The authorization boundary of a system undergoing assessment comprises of: Response:

The authorization boundary of a system comprises all information system elements that are directly under the management control of the authorizing organization and are subject to a single authorization decision to operate.

While a CIO may have input, the authorization boundary is defined by the technical and operational scope of the system under assessment for a single authorization, not solely by stakeholder specification.

Defining a boundary purely by an IP range is insufficient as it might arbitrarily include systems not under the organization's control or exclude relevant authorized components.

Including 'interconnected' systems expands the boundary beyond what is typically subject to a *single* authorization, as interconnected systems often have their own distinct authorization boundaries.