Which concept emphasizes controlling access by applying least privilege and continuous verification across cyberspace?

Which concept emphasizes controlling access by applying least privilege and continuous verification across cyberspace?

• A. Zero Trust Network Access Principles
• B. Perimeter Security
• C. FedRAMP
• D. Cyberspace Parity

Answer: (A)

Zero Trust Network Access Principles are built around never trusting requests by default and always verifying every access attempt. The idea is to grant the minimum privileges necessary for a task (least privilege) and to continuously evaluate who is requesting access, the device they’re on, the state of that device, and the context of the request (risk signals) before and during access. This verification isn’t limited to a single login or a single boundary; it applies across all environments—on-prem, cloud, and remote—so trust isn’t tied to location or network segment. In practice, access decisions are dynamic, policy-driven, and supported by ongoing telemetry, which reduces the chance of over-privileged access and helps catch risky activity as it happens. Perimeter security, by contrast, focuses on defending the outer edge of a network and often relies on a trusted internal environment once someone gets past the boundary, so it doesn’t inherently enforce continuous, universal verification or strict least-privilege access across all resources. FedRAMP provides a standardized security assessment and authorization framework for cloud services, but it’s about compliance and risk management for cloud providers rather than the ongoing access-control model described. Cyberspace Parity isn’t a recognized framework for securing access in this way. The emphasis on controlled, verified access at all times across all locations is what defines the Zero Trust approach.

Zero Trust Network Access Principles are built around never trusting requests by default and always verifying every access attempt. The idea is to grant the minimum privileges necessary for a task (least privilege) and to continuously evaluate who is requesting access, the device they’re on, the state of that device, and the context of the request (risk signals) before and during access. This verification isn’t limited to a single login or a single boundary; it applies across all environments—on-prem, cloud, and remote—so trust isn’t tied to location or network segment. In practice, access decisions are dynamic, policy-driven, and supported by ongoing telemetry, which reduces the chance of over-privileged access and helps catch risky activity as it happens.

Perimeter security, by contrast, focuses on defending the outer edge of a network and often relies on a trusted internal environment once someone gets past the boundary, so it doesn’t inherently enforce continuous, universal verification or strict least-privilege access across all resources. FedRAMP provides a standardized security assessment and authorization framework for cloud services, but it’s about compliance and risk management for cloud providers rather than the ongoing access-control model described. Cyberspace Parity isn’t a recognized framework for securing access in this way. The emphasis on controlled, verified access at all times across all locations is what defines the Zero Trust approach.