Which concept describes the ongoing removal of the network perimeter and reliance on controls across the environment?

• A. Data Sovereignty
• B. BYOD
• C. Jurisdiction
• D. De-Perimeterization

Answer: (D)

This concept is de-perimeterization: the idea that the network boundary is no longer a reliable guard, and security relies on controls applied across the entire environment rather than at a single perimeter.

As networks blend on-prem, cloud, mobile, and remote access, the traditional fortress model breaks down. Security focuses on continuous verification, strict access control, least-privilege permissions, strong identity management, device posture checks, encryption, and constant monitoring across all assets and connections. This approach—often paired with zero-trust principles and microsegmentation—secures resources regardless of where they reside, rather than relying on a protected perimeter.

Data sovereignty is about where data is stored and the laws governing it. BYOD concerns using personal devices for work. Jurisdiction deals with the legal authority over data and actions. None of these describe removing or bypassing a fixed network boundary in favor of pervasive, environment-wide controls.