Explanation
= 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.

Explanation
In a major disaster, staff can be injured or can be prevented from traveling to the hot site, so technical skills and business knowledge can be lost. It is therefore critical to maintain an updated copy of the detailed recovery plan at an offsite location. Continuity of the business requires adequate network redundancy, hot site infrastructure that is certified as compatible and clear criteria for declaring a disaster. Ideally, the business continuity program addresses all of these satisfactorily. However, in a disaster situation, where all these elements are present, but without the detailed technical plan, business recovery will be seriously impaired.

Before outsourcing any application or service, an information security manager should first determine the required security controls for the new solution, based on the organization's risk appetite, security policies and standards, and regulatory requirements. This will help to evaluate and select the most suitable provider, as well as to define the security roles and responsibilities, service level agreements (SLAs), and audit requirements. Reference: https://www.isaca.org/credentialing/cism https://www.wiley.com/en-us/CISM+Certified+Information+Security+Manager+Study+Guide-p-9781119801948

Section: INFORMATION SECURITY PROGRAM DEVELOPMENT