A modern Zero Trust security architecture fundamentally differs from the traditional wall-and-moat model byeliminating implicit trust based on network location. As defined inNIST SP 800-207and reinforced in the CCIS curriculum, Zero Trust requirescontinuous authentication and authorization of all entities, regardless of whether they originate from inside or outside the network.

Traditional perimeter-based security assumes that users and devices inside the network are trusted, focusing defenses at the boundary. This approach fails in modern environments where cloud access, remote work, and compromised credentials allow attackers to operate internally without triggering perimeter controls.

Zero Trust replaces this assumption with continuous validation using identity, behavior, device posture, and risk signals. Falcon Identity Protection operationalizes this concept by continuously inspecting authentication traffic and reassessing trust throughout a session, not just at login time.

Because Zero Trust applies universally and continuously,Option Dis the correct and verified answer.