= Patch management is the process of applying updates to software and hardware systems to fix security vulnerabilities and improve functionality. Patch management is one of the best ways to prevent the exploitation of system vulnerabilities, as it reduces the attack surface and closes the gaps that attackers can exploit. Patch management also helps to ensure compliance with security standards and regulations, and maintain the performance and availability of systems.
Intrusion detection is the process of monitoring network or system activities for signs of malicious or unauthorized behavior. Intrusion detection can help to detect and respond to attacks, but it does not prevent them from happening in the first place. Log monitoring is the process of collecting, analyzing and reviewing log files generated by various systems and applications. Log monitoring can help to identify anomalies, errors and security incidents, but it does not prevent them from occurring. Antivirus software is the program that scans files and systems for viruses, malware and other malicious code. Antivirus software can help to protect systems from infection, but it does not prevent the exploitation of system vulnerabilities that are not related to malware.
Therefore, patch management is the best security process to prevent the exploitation of system vulnerabilities, as it addresses the root cause of the problem and reduces the risk of compromise. References = CISM Review Manual, 16th Edition eBook | Digital | English1, Chapter 4: Information Security Program Development and Management, Section 4.3: Information Security Program Resources, Subsection 4.3.1: Information Security Infrastructure and Architecture, Page 204.

The most important factor to ensuring information stored by an organization is protected appropriately is assigning information asset ownership. Information asset ownership is the process of identifying and assigning the roles and responsibilities of the individuals or groups who have the authority and accountability for the information assets and their protection. Information asset owners are responsible for defining the business value, classification, and security requirements of the information assets, as well as granting the access rights and privileges to the information users and custodians. Information asset owners are also responsible for monitoring and reviewing the security performance and compliance of the information assets, and reporting and resolving any security issues or incidents. By assigning information asset ownership, the organization can ensure that the information assets are properly identified, categorized, protected, and managed according to their importance, sensitivity, and regulatory obligations.
References = CISM Review Manual, 16th Edition, Chapter 1: Information Security Governance, Section:
Data Classification, page 331; CISM Review Questions, Answers & Explanations Manual, 10th Edition, Question 62, page 572.

An emerging technology roadmap is a strategic plan that identifies the potential benefits, risks, and challenges of adopting new technologies in alignment with the organization's goals and objectives. It also defines the roles and responsibilities, processes, and controls for managing the technology lifecycle, from evaluation to implementation to maintenance. An emerging technology roadmap can help the information security program support the adoption of emerging technologies by ensuring that security requirements are considered and addressed at every stage, and that the technologies are aligned with the organization's risk appetite and compliance obligations.
References = CISM Review Manual, 15th Edition, page 97; Privacy, Security and Bias in Emerging Technologies; The Impact of Emerging Technology on the Future of Cybersecurity

The primary basis for establishing metrics that measure the effectiveness of an information security program should be the risk tolerance of the organization, which is the degree of risk that the organization is willing to accept or avoid in pursuit of its objectives. Metrics based on risk tolerance can help to evaluate whether the information security program is aligned with the business strategy, supports the risk management process, and delivers value to the organization. Residual risk, regulatory requirements, and control objectives are also important factors to consider when developing metrics, but they are not as fundamental as the risk tolerance.
References = CISM Review Manual, 16th Edition, page 69

When investigating an information security incident, details of the incident should be shared only as needed, according to the principle of least privilege and the need-to-know basis. This means that only the authorized and relevant parties who have a legitimate purpose and role in the incident response process should have access to the incident information, and only to the extent that is necessary for them to perform their duties.
Sharing incident details only as needed helps to protect the confidentiality, integrity, and availability of the incident information, as well as the privacy and reputation of the affected individuals and the organization.
Sharing incident details only as needed also helps to prevent unauthorized disclosure, modification, deletion, or misuse of the incident information, which could compromise the investigation, evidence, remediation, or legal actions.
References = CISM Review Manual, 16th Edition, Chapter 4: Information Security Incident Management, Section: Incident Response Process, page 2311; CISM Review Questions, Answers & Explanations Manual,
10th Edition, Question 49, page 462.