In SP 800-53, what is meant by 'System Specific Control'?

In the context of SP 800-53, 'System Specific Controls' refer to controls that are tailored for individual information systems. These controls are designed to address specific risks and compliance requirements that are unique to that particular system. They take into consideration the unique operational environment, the types of data processed, and the specific vulnerabilities associated with the system.

The rationale behind this approach is that while some controls are broad and applicable across multiple systems (such as those that might be categorized as general controls), system-specific controls are customized to meet the distinct needs of a single information system. This level of tailoring ensures that the controls are relevant and effective in mitigating risks that are specific to that system's configuration, purpose, and environment.

By focusing on the unique characteristics of each system, organizations can implement more effective security measures that are more likely to be successful in protecting sensitive information and maintaining compliance with applicable regulations and standards.