What is a System Security Plan (SSP)?

A System Security Plan (SSP) is a crucial component within the framework of information security management. It serves as a formal document that outlines the security requirements and controls for an organization's information systems. This includes details about the security measures that have been implemented, the responsibilities for maintaining these measures, and how they align with regulatory requirements and organizational policies.

The SSP encapsulates the security posture of the system, ensuring that all stakeholders understand the security protocols in place. It also serves as a reference for assessing compliance with various standards, including those required by frameworks such as the Cybersecurity Maturity Model Certification (CMMC).

In contrast, other options do not pertain to security or information systems. Documents detailing sales strategies and summaries of employee training processes focus on entirely different aspects of organizational operations. A checklist for system maintenance might include routine tasks necessary to keep systems operational, but it does not encompass the comprehensive security-related requirements that an SSP must address. Therefore, option C accurately captures the primary function of an SSP in the realm of information security management.