A security analyst is setting up documents for the outputs of the test or incident, along with recommendations based on the outputs and findings. Which standard should the analyst reference?

The correct choice revolves around the need for a framework that specifically addresses the documentation and reporting of tests or incidents in a systematic way. NIST 800-84 provides guidelines for the conduct of security assessments and emphasizes a structured approach in documenting the processes, results, and recommendations that stem from testing or incident analysis. This includes not only reporting on the findings but also formulating actionable recommendations based on those results.

By referencing NIST 800-84, the security analyst ensures that their documentation is aligned with established best practices, which enhances the clarity and effectiveness of the information being communicated. This applicable context makes it particularly beneficial for maintaining consistency in how security incidents are managed and reported, which is key in both compliance and operational improvement.

While the other standards listed may relate to security and incident response in some capacity, they are not primarily focused on the structured documentation of testing outputs and recommendations. For example, NIST 800-53 is concentrated on security and privacy controls rather than incident reporting. NIST 800-61 deals more specifically with incident handling rather than the methodical documentation of findings and recommendations. ISO 15408 is focused on evaluation criteria for IT security, which does not align with the immediate needs of documenting incident outcomes and actionable recommendations.