Increasing accountability is the primary reason for ensuring clearly defined roles and responsibilities are communicated to users who have been granted administrative privileges due to specific application requirements. Administrative privileges grant users the ability to perform actions that can affect the security, availability and integrity of the application or system, such as installing software, modifying configurations, accessing sensitive data or granting access to other users. Therefore, users who have administrative privileges must be aware of their roles and responsibilities and the consequences of their actions. Communicating clearly defined roles and responsibilities to these users helps to establish accountability by setting expectations, defining boundaries, assigning ownership and enabling monitoring and reporting. Accountability also helps to deter misuse or abuse of privileges, ensure compliance with policies and standards, and facilitate incident response and investigation.
Clearer segregation of duties is a benefit of ensuring clearly defined roles and responsibilities, but it is not the primary reason. Segregation of duties is a control that aims to prevent or detect conflicts of interest, errors, fraud or unauthorized activities by separating different functions or tasks among different users or groups. For example, a user who can create a purchase order should not be able to approve it. Segregation of duties helps to reduce the risk of unauthorized or inappropriate actions by requiring more than one person to complete a critical or sensitive process. However, segregation of duties alone does not ensure accountability, as users may still act in collusion or circumvent the control.
Increased user productivity is a possible outcome of ensuring clearly defined roles and responsibilities, but it is not the primary reason. User productivity refers to the efficiency and effectiveness of users in performing their tasks and achieving their goals. By communicating clearly defined roles and responsibilities, users may have a better understanding of their tasks, expectations and performance indicators, which may help them to work faster, smarter and better. However, user productivity is not directly related to the security risk of granting administrative privileges, and it may also depend on other factors, such as user skills, motivation, tools and resources.
Fewer security incidents is a desired result of ensuring clearly defined roles and responsibilities, but it is not the primary reason. Security incidents are events or situations that compromise the confidentiality, integrity or availability of information assets or systems. By communicating clearly defined roles and responsibilities, users may be more aware of the security implications of their actions and the potential threats and vulnerabilities they may face, which may help them to avoid or prevent security incidents. However, fewer security incidents is not a guarantee or a measure of accountability, as users may still cause or experience security incidents due to human error, negligence, malicious intent or external factors. References =
CISM Review Manual 15th Edition, page 144
Effective User Access Reviews - ISACA1
CISM ITEM DEVELOPMENT GUIDE - ISACA2
