Process of controlling modifications to hardware, firmware, software, and documentation to protect the information system against improper modification prior to, during, and after system…

Configuration control is a systematic process that ensures that all modifications to hardware, firmware, software, and system documentation are managed, tracked, and approved to maintain the system's integrity, security, and authorized baseline. This process protects against unauthorized or improper changes that could introduce vulnerabilities or compromise the system's security posture.

Security controls are the safeguards or countermeasures implemented to protect information systems, but "configuration control" is the process of managing changes to these and other system components, not the controls themselves.

A contingency plan outlines an organization's response and recovery procedures in the event of a disaster or disruption, which is different from managing ongoing system modifications.

An operations plan describes the routine day-to-day activities and procedures for running an information system, but it does not specifically focus on the control of modifications.