Which NIST document is specifically designed to help identify the groups necessary for responding to a security incident?

The chosen answer is the NIST 800-61 document, which is specifically focused on incident handling and response. This publication provides comprehensive guidelines for establishing and maintaining an effective incident response capability. It emphasizes the importance of identifying key roles and responsibilities within the organization for proactive and reactive measures during security incidents.

NIST 800-61 outlines the necessary groups, such as incident response teams, which are essential for addressing incidents effectively. It covers the entire incident response lifecycle, including preparation, detection and analysis, containment, eradication, recovery, and post-incident activity, thus ensuring a thorough approach to security incidents. The guidelines provided are crucial for organizations looking to create a structured response framework that includes identifying the right stakeholders and ensuring their readiness.

The other options, while they pertain to information security and privacy, do not specifically target the identification of groups involved in incident response. NIST 800-53 deals with security controls rather than incident response processes, NIST 800-207 focuses on zero trust architecture, and NIST 800-84 provides guidelines for conducting security training and awareness, but not directly for organizing incident response teams.