Which NIST standard focuses on Zero Trust Architecture, addressing security based on resources like users and services rather than network boundaries?

The correct answer is NIST 800-207, which specifically focuses on Zero Trust Architecture. This publication outlines a security framework that shifts the focus from traditional perimeter-based defenses to a model that emphasizes the security of individual resources like users, devices, and services regardless of their location within or outside of an organization's network.

Zero Trust Architecture fundamentally assumes that threats could exist both outside and inside the network, thus requiring strict identity verification for every user and device attempting to access resources. The framework provides guidelines and principles for implementing Zero Trust strategies, ensuring that entities are authenticated, authorized, and continuously validated before being granted access to sensitive information or systems.

In contrast, other options do not specifically address Zero Trust principles. For instance, NIST 800-84 focuses on a framework for conducting contingency planning and incident response, while the CIS Benchmark provides best practices for securing systems and reducing vulnerabilities. Security Technical Implementation Guides (STIGs) are used to ensure compliance with security policies but do not inherently incorporate the Zero Trust model. This distinct focus on user and resource security in NIST 800-207 aligns closely with current cybersecurity trends that advocate for more rigorous and adaptive security measures.