Which component of network security is responsible for ongoing data protection and management?

The data custodian plays a crucial role in network security by focusing on the day-to-day management and protection of data. This role involves implementing security measures to safeguard data, ensuring that it is properly stored, maintained, and backed up. The data custodian is responsible for managing access controls, monitoring data integrity, and facilitating protection mechanisms against unauthorized access or data breaches.

In contrast, other roles have different responsibilities. The data owner is typically responsible for the overall governance and policies related to the data. They define who has access and the terms under which the data can be used. The data controller typically refers to an entity that determines how personal data is processed, which is more about compliance and regulatory responsibilities rather than ongoing management. The data processor, on the other hand, refers to an entity that processes data on behalf of the data controller, focusing on executing processing tasks but not on strategic data management or protection decisions. Thus, the data custodian is specifically tasked with ongoing data protection and management activities.