CISM Exam Dumps - Certified Information Security Manager

= The PRIMARY objective of performing a post-incident review is to identify the root cause of the incident, which is the underlying factor or condition that enabled the incident to occur. Identifying the root cause helps to prevent or mitigate future incidents, as well as to improve the incident response process. Re-evaluating the impact of incidents, identifying vulnerabilities, and identifying control improvements are secondary objectives of a post-incident review, which are derived from the root cause analysis. References = CISM Review Manual, 16th Edition, page 3061; CISM Review Questions, Answers & Explanations Manual, 10th Edition, page 1512

The primary objective of performing a post-incident review is to identify the root cause of the incident. After an incident has occurred, the post-incident review process involves gathering and analyzing evidence to determine the cause of the incident. This analysis will help to identify both the underlying vulnerability that allowed the incident to occur, as well as any control improvements that should be implemented to prevent similar incidents from occurring in the future. Additionally, the post-incident review process can also be used to re-evaluate the impact of the incident, as well as any potential implications for the organization.

Isolating the affected system is the first step in the incident response process, as it helps to contain the attack, prevent further damage, and preserve the evidence for analysis. Isolating the system can be done by disconnecting it from the network, blocking the malicious traffic, or applying quarantine rules.

References = CISM Review Manual 2022, page 3121; CISM Exam Content Outline, Domain 4, Task 4.22; Cybersecurity Incident Response Exercise Guidance3

If the residual risk of the business activity is lower than the acceptable risk level, it means that the existing controls are effectively mitigating the identified risks. In this case, the best course of action is to monitor the effectiveness of the controls and ensure they remain effective. The information security manager should review and test the controls periodically to ensure that they continue to provide adequate protection. It is also essential to update the risk assessment framework to reflect changes in the business environment or risk landscape.

Performing post-incident reviews is the best way to enhance training for incident response teams because it allows them to identify the strengths and weaknesses of their response, learn from the lessons and best practices, and implement corrective actions and improvement plans for future incidents. Post-incident reviews also help to evaluate the effectiveness and efficiency of the incident response process and procedures, and to update them as needed.

Positioning security as a business enabler is the BEST way to obtain organization-wide support for an information security program, because it helps to demonstrate the value and benefits of security to the organization’s strategic objectives, performance, and reputation. By aligning security with the business goals and needs, the information security manager can gain the buy-in and commitment of senior management and other stakeholders, and foster a positive security culture across the organization.

References =

CISM Review Manual, 16th Edition, ISACA, 2020, p. 37: “The information security manager should position information security as a business enabler that supports the achievement of the enterprise’s business objectives and adds value to the enterprise.”

CISM Review Manual, 16th Edition, ISACA, 2020, p. 39: “The information security manager should communicate the value and benefits of information security to senior management and other stakeholders to obtain their support and commitment for the information security program.”

CISM Review Manual, 16th Edition, ISACA, 2020, p. 40: “The information security manager should promote a positive security culture within the enterprise by influencing the behavior and attitude of employees and other parties toward information security.”

= An incremental backup method only backs up the data that has changed since the last backup, whether it was a full or an incremental backup. This method requires the least amount of time and storage space for backup, but it requires the most time to restore data for an application. To restore data from an incremental backup, the latest full backup and all the subsequent incremental backups are needed. A full backup method backs up all the data in a system or an application at a point in time. This method requires the most amount of time and storage space for backup, but it requires the least time to restore data for an application. To restore data from a full backup, only the latest full backup is needed. A differential backup method backs up the data that has changed since the last full backup. This method requires more time and storage space for backup than the incremental method, but less than the full backup method. It also requires less time to restore data for an application than the incremental method, but more than the full backup method. To restore data from a differential backup, the latest full backup and the latest differential backup are needed. A disk mirroring method creates an exact copy of a disk on another disk in real time. This method provides the highest level of availability and fault tolerance, but it also requires twice the amount of disk space. To restore data from a disk mirroring method, the mirrored disk can be used as the primary disk in case of a failure. References = CISM Review Manual 15th Edition, page 201-202.

The method that requires the MOST time to restore data for an application is a Full Backup. Full backups contain all the data that is required to restore an application, but the process of restoring the data is the most time-consuming as it involves copying all the data from the backup to the application. Incremental backups only backup the changes made since the last backup, differential backups only backup changes made since the last full backup, and disk mirroring provides real-time data replication, so the data is immediately available.

 A compromised endpoint device is a potential threat to the security of the network and the data stored on it. The best course of action to prevent further damage is to isolate the endpoint device from the network and other devices, so that the attacker cannot access or spread to other systems. Isolating the endpoint device also allows the information security manager to investigate the incident and determine the root cause, the extent of the compromise, and the appropriate remediation steps. Wiping and resetting the endpoint device may not be feasible or desirable, as it may result in data loss or evidence destruction. Powering off the endpoint device may not stop the attack, as the attacker may have installed persistent malware or backdoors that can resume once the device is powered on again. Running a virus scan on the endpoint device may not be effective, as the attacker may have used sophisticated techniques to evade detection or disable the antivirus software. References = CISM Review Manual, 15th Edition, page 1741; CISM Review Questions, Answers & Explanations Database, question ID 2112; Using EDR to Address Unmanaged Devices - ISACA3; Boosting Cyberresilience for Critical Enterprise IT Systems With COBIT and NIST Cybersecurity Frameworks - ISACA; Endpoint Security: On the Frontline of Cyber Risk.

The best way to reduce the risk associated with a bring your own device (BYOD) program is to implement a mobile device policy and standard. This policy should include guidelines and rules regarding the use of mobile devices, such as acceptable use guidelines and restrictions on the types of data that can be stored or accessed on the device. Additionally, it should also include requirements for secure mobile device practices, such as the use of strong passwords, encryption, and regular patching. A mobile device management (MDM) solution can also be implemented to help ensure mobile devices meet the organizational security requirements. However, it is not enough to simply implement the policy and MDM solution; employees must also be trained on the secure mobile device practices to ensure the policy is followed.

A business impact analysis (BIA) is a process that identifies and evaluates the potential effects of disruptions to critical business operations as a result of a disaster, accident or emergency. The primary purpose of a BIA is to determine the criticality of information assets and the impact of their unavailability on the organization’s mission, objectives and reputation. (From CISM Review Manual 15th Edition)