Continuing System Operation

C.

DITSCAP stands for "DoD Information Technology Security Certification and Accreditation Process," which is a process for certifying and accrediting U.S. Department of Defense (DoD) information systems. The process consists of six phases that guide the system from design to decommissioning.

The phase of DITSCAP that includes the activities necessary for the continuing operation of an accredited IT system in its computing environment and for addressing the changing threats that a system faces throughout its life cycle is the Post Accreditation Phase (Option C).

The Post Accreditation Phase (PAP) is the final phase of DITSCAP and begins after the system is accredited for operation. The PAP is responsible for the maintenance of the system's accreditation, which includes performing periodic security assessments, monitoring system changes, and updating the system's security documentation.

The PAP is also responsible for ensuring that the system remains secure in the face of changing threats and vulnerabilities. To achieve this, the PAP employs several activities, such as threat analysis, vulnerability scanning, and risk assessments. Based on the results of these activities, the PAP develops and implements changes to the system's security posture, including updates to security policies, procedures, and technical controls.

In summary, the Post Accreditation Phase is responsible for ensuring the continued security of an accredited IT system in its computing environment and addressing the changing threats that the system faces throughout its life cycle.