The data owner is best qualified to classify systems and data in accordance with external requirements. The data owner is responsible for determining how data should be classified based on its sensitivity, value, and regulatory requirements. They have the authority to decide on classification levels such as public, confidential, or secret, and ensure compliance with external standards. Other roles, like data custodians or processors, support the implementation of data management, but the data owner has the final responsibility for classification. CASP+ highlights the role of data owners in determining data classification and ensuring compliance with external requirements.
References:
* CASP+ CAS-004 Exam Objectives: Domain 1.0 - Risk Management (Data Classification and Data Owner Responsibilities)
* CompTIA CASP+ Study Guide: Data Classification and Governance Responsibilities of the Data Owner