It details the specific security controls—such as encryption, access logs, and physical barriers—that are "in place" or "planned."
The System Security Plan (SSP) is the formal document that describes how an organization intends to protect its information systems. It is not merely a technical manual but a strategic blueprint that aligns with federal standards like NIST SP 800-53 .
If the SSP is the plan, the is the audit. The RAR evaluates the effectiveness of the controls listed in the SSP against actual threats. It identifies vulnerabilities, assesses the likelihood of exploitation, and determines the potential impact on the mission. Ssp rar
The RAR is a living document. As new threats emerge, the RAR must be updated to reflect how the system's risk posture has changed. The Synergy of Compliance
It provides a "High," "Moderate," or "Low" risk rating for the system, which is essential for the Authorizing Official (AO) to grant an Authority to Operate (ATO) . The RAR evaluates the effectiveness of the controls
For security professionals, mastering these documents is the difference between "checking a box" and building a resilient infrastructure. They move the conversation from theoretical safety to verified security, ensuring that defense-in-depth is an active practice rather than a static goal.
It cross-references known weaknesses (from compliance scans and audits) against the security controls. As new threats emerge, the RAR must be
While they are often grouped together in job descriptions and compliance checklists, they represent two distinct halves of a critical security dialogue: and reality . The SSP: The Blueprint of Intent
