Effective security governance requires clear assignment of roles and responsibilities, such as owners, controllers, and custodians, to ensure accountability for security-related tasks and data management within the organization. This establishes clear lines of responsibility and authority, which is fundamental to governance frameworks.
Reference:
CompTIA Security+ SY0-701 Official Study Guide, Domain 5.1: "Assigning roles and responsibilities is fundamental to effective security governance." Exam Objectives 5.1: "Explain the importance of organizational security policies, standards, and frameworks."