What is the primary focus of remedial controls in security management?

Remedial controls in security management are specifically designed to address and correct identified vulnerabilities within a system or organizational process. Their primary focus is on the actions taken after a vulnerability has been discovered, with the intent to mitigate the risk associated with that vulnerability. This can involve applying patches, changing configurations, or other measures to eliminate the shortcomings in the security posture.

The other options serve different functions in the realm of security but do not align with the primary purpose of remedial controls. Implementing physical security measures focuses on physical barriers and protections, which are preventive rather than remedial. Detecting unauthorized access is more about monitoring and alerting and does not involve correcting issues. Establishing user access rights deals with the proper assignment and management of access permissions, which is a preventive control rather than a corrective action aimed at fixing vulnerabilities. The emphasis of remedial controls is thus squarely on correction and remediation to enhance overall security.