Isaca Updated CISM Exam Questions and Answers by ignacy

A risk owner is a person or entity that is responsible for ensuring that risk is managed effectively. One of the primary responsibilities of a risk owner is to implement controls that will help mitigate or manage the risk. While risk assessments, determining the organization's risk appetite, and monitoring control effectiveness are all important aspects of managing risk, it is the responsibility of the risk owner to take the necessary actions to manage the risk.

 The CEO is the best able to influence the security culture within an organization because the CEO sets the tone and direction for the organization and has the authority and responsibility to ensure that the organization’s objectives are aligned with its strategy. The CEO can also communicate the importance and value of information security to all stakeholders and foster a culture of security awareness and accountability. The CISO, CIO and COO are important roles in information security management, but they do not have the same level of influence and authority as the CEO. References = CISM Review Manual, 16th Edition, page 221; CISM Exam Content Outline, Domain 1, Task 12

The Chief Information Security Officer (CISO) is responsible for leading and coordinating an organization's information security program, and as such, is in a prime position to influence the security culture within the organization. The CISO is responsible for setting policies and standards, educating employees about security risks and best practices, and ensuring that the organization is taking appropriate measures to mitigate security risks. By demonstrating a strong commitment to information security, the CISO can help to create a security-aware culture within the organization.

After an intrusion has been detected and contained, the system should be recovered to a known and trusted state. The best practice for ensuring the integrity of the recovered system is to install the OS, patches, and application from the original source, such as the vendor’s website or media. This way, any malicious code or backdoors that may have been inserted by the intruder can be eliminated. Restoring the OS, patches, and application from a backup may not guarantee the integrity of the system, as the backup may have been compromised or outdated. Restoring the application and data from a forensic copy may preserve the evidence of the intrusion, but it may also reintroduce the vulnerability or malware that allowed the intrusion in the first place. Removing all signs of the intrusion from the OS and application may not be sufficient or feasible, as the intruder may have made subtle or hidden changes that are difficult to detect or undo.

References =

ISACA, CISM Review Manual, 16th Edition, 2020, page 2401

ISACA, CISM Review Questions, Answers & Explanations Database - 12 Month Subscription, 2020, question ID 2132

The BEST practice for ensuring the integrity of the recovered system after an intrusion is to restore the OS, patches, and application from a backup. This will ensure that the system is in a known good state, without any potential residual malicious code or changes from the intrusion. Restoring from a backup also enables the organization to revert to a previous configuration that has been tested and known to be secure. This step should be taken prior to conducting a thorough investigation and forensic analysis to determine the cause and extent of the intrusion.

The explanation given in the manual is:

Incident classification criteria enable an organization to prioritize incidents based on their impact and urgency. This allows for an optimized allocation of recovery resources to minimize business disruption and ensure timely restoration of normal operations. The other choices are benefits of incident management but not directly related to incident classification criteria.