The best way for an information security manager to improve the effectiveness of an organization’s information security program is to collaborate with business and IT functions in determining controls. Collaboration is a key factor for ensuring that the information security program is aligned with the organization’s business objectives, risk appetite, and security strategy, and that it supports the business processes and activities. Collaboration also helps to gain the buy-in, involvement, and ownership of the business and IT functions, who are the primary stakeholders and users of the information security program. Collaboration also facilitates the communication, coordination, and integration of the information security program across the organization, and enables the information security manager to understand the needs, expectations, and challenges of the business and IT functions, and to propose the most appropriate and effective security controls and solutions.

Focusing on addressing conflicts between security and performance (A) is a possible way to improve the effectiveness of an information security program, but not the best one. Security and performance are often competing or conflicting goals, as security controls may introduce overhead, complexity, or delays that affect the efficiency, usability, or availability of the systems or processes. Addressing these conflicts may help to optimize the balance and trade-off between security and performance, and to enhance the user satisfaction and acceptance of the security controls. However, focusing on addressing conflicts between security and performance does not necessarily improve the alignment, integration, or communication of the information security program with the business and IT functions, nor does it ensure the involvement or ownership of the stakeholders.

Including information security requirements in the change control process © is also a possible way to improve the effectiveness of an information security program, but not the best one. The change control process is a process that manages the initiation, approval, implementation, and review of changes to the systems or processes, such as enhancements, updates, or fixes. Including information security requirements in the change control process may help to ensure that the changes do not introduce new or increased security risks or impacts, and that they comply with the security policies, standards, and procedures. However, including information security requirements in the change control process does not necessarily improve the collaboration, communication, or coordination of the information security program with the business and IT functions, nor does it ensure the buy-in or involvement of the stakeholders.

Obtaining assistance from IT to implement automated security controls (D) is also a possible way to improve the effectiveness of an information security program, but not the best one. Automated security controls are security controls that are implemented by using software, hardware, or other technologies, such as encryption, firewalls, or antivirus, to perform security functions or tasks without human intervention. Obtaining assistance from IT to implement automated security controls may help to improve the efficiency, consistency, or reliability of the security controls, and to reduce the human errors, negligence, or malicious actions. However, obtaining assistance from IT to implement automated security controls does not necessarily improve the collaboration, communication, or integration of the information security program with the business and IT functions, nor does it ensure the ownership or involvement of the stakeholders.

References = CISM Review Manual, 16th Edition, Chapter 1: Information Security Governance, Section: Information Security Strategy Development, Subsection: Collaboration, page 24-251