CMMC System Security Plan (SSP): What Businesses Need to Know

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CMMC System Security Plan (SSP): What Businesses Need to Know

A System Security Plan is a foundational document for organizations working with NIST SP 800-171 and CMMC.

What an SSP Should Describe

  • System boundaries
  • Environment and architecture
  • CUI flows and locations
  • Responsible systems and services
  • Implementation of security requirements
  • Roles and responsibilities
  • Relevant policies and procedures

Why Accuracy Matters

An SSP should reflect the actual environment. Generic documentation that does not match real configurations creates assessment risk.

SSP and CUI Scope

Read our CUI guide.

SSP and POA&M

Outstanding work may need tracking through a POA&M where permitted.

Microsoft Environment Documentation

For Microsoft environments, SSP documentation may need to describe identity, endpoints, cloud services, data protection, logging and monitoring. See CMMC and Microsoft 365.

Keep the SSP Current

Treat the SSP as a living document and update it when architecture, services or CUI handling change.

Our CMMC compliance consulting services can support SSP development and remediation planning.

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