A comprehensive document that describes how an organization implements, manages, and maintains the cybersecurity controls required to protect Controlled Unclassified Information (CUI). The SSP is a central requirement under DFARS 252.204-7012 and a foundational artifact for demonstrating compliance with NIST SP 800-171 and CMMC.

An SSP typically includes:

• An overview of the organization’s information systems and boundaries.

• A description of security controls currently in place.

• Plans for implementing additional controls to meet compliance requirements.

• References to related documents such as risk assessments, incident response plans, and Plans of Action & Milestones (POA&Ms).

Assessors rely heavily on the SSP during CMMC audits to verify that an organization not only has documented policies but also enforces them in practice. A well-prepared SSP not only demonstrates compliance but also provides a roadmap for ongoing cybersecurity improvement.