Definition
A System Security Plan (SSP) describes system boundaries and how security controls are implemented. It is a core artifact for NIST 800-171 and CMMC readiness.
Why it matters for business
System Security Plan documenting control implementation. Leaders do not need to memorize acronyms—but teams that handle compliance, security, or cloud identity will encounter this term in contracts, audits, and architecture decisions.
Example in an SMB context
A 40-person contractor using Microsoft 365 and laptops may need to explain how SSP applies to their environment when a prime asks about cybersecurity posture or when preparing documentation for CMMC-related requirements.
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