Final answer:
The organization pillar of security operation is responsible for identifying the scope of responsibilities and the separation of duties within security teams to prevent conflicts of interest and reduce security risks.
Step-by-step explanation:
The pillar of security operation that identifies the scope of responsibilities and separation of duties is known as organization. The organization pillar is essential in defining how security tasks are distributed among team members and ensuring that no single individual has too much control over multiple aspects of the security infrastructure, which could lead to potential conflicts of interest or security risks.
This pillar is crucial for maintaining a clear understanding of who is accountable for what within the security operations. By defining specific roles and responsibilities, an organization can create a more effective and secure environment. Proper separation of duties helps prevent fraud and errors and is a fundamental element of internal control frameworks like COBIT and ISO/IEC 27001.
For example, within an organization, the responsibility for setting up user accounts may lie with one team, while the monitoring of access logs is handled by another. This prevents any single team from having the ability to both create a user and cover up any potential misuse of that account.