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 .
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 cross-references known weaknesses (from compliance scans and audits) against the security controls. Ssp rar
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.
System Security Plan (SSP) and/or Information Security (IS) Risk ... - CMS The System Security Plan (SSP) is the formal
It establishes the "who, what, and how" of system access, ensuring that technical defenses are supported by organizational policy. The RAR: The Mirror of Reality
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) . As new threats emerge, the RAR must be
It details the specific security controls—such as encryption, access logs, and physical barriers—that are "in place" or "planned."