Isaca CISM Based on Real Exam Environment

An incident response plan is a set of procedures and guidelines that define the roles and responsibilities of the incident response team, the steps to follow in the event of an incident, and the communication and escalation protocols to ensure timely and effective resolution of incidents. One of the essential components of an incident response plan is the criteria for escalation, which specify the conditions and thresholds that trigger the escalation of an incident to a higher level of authority or a different function within the organization. The criteria for escalation may depend on factors such as the severity, impact, duration, scope, and complexity of the incident, as well as the availability and capability of the incident response team. The criteria for escalation help to ensure that incidents are handled by the appropriate personnel, that management is kept informed and involved, and that the necessary resources and support are provided to resolve the incident. References = 

The strongest justification for granting an exception to the security policy that disables access to USB storage devices on laptops and desktops is that the benefit is greater than the potential risk. A security policy is a document that defines the goals, objec-tives, principles, roles, responsibilities, and requirements for protecting information and systems in an organization. A security policy should be based on a risk assessment that identifies and evaluates the threats and vulnerabilities that affect the organiza-tion’s assets, as well as the potential impact and likelihood of incidents. A security pol-icy should also be aligned with the organization’s business objectives and risk appe-tite1. However, there may be situations where a security policy cannot be fully enforced or complied with due to technical, operational, or business reasons. In such cases, an exception to the policy may be requested and granted by an authorized person or body, such as a security manager or a policy committee. An exception to a security policy should be justified by a clear and compelling reason that outweighs the risk of non-compliance. An exception to a security policy should also be documented, approved, monitored, reviewed, and revoked as necessary2. The strongest justification for grant-ing an exception to the security policy that disables access to USB storage devices on laptops and desktops is that the benefit is greater than the potential risk. USB storage devices are portable devices that can store large amounts of data and can be easily connected to laptops and desktops via USB ports. They can provide several benefits for users and organizations, such as:

•Enhancing data mobility and accessibility

•Improving data backup and recovery

•Supporting data sharing and collaboration

•Enabling data encryption and authentication

However, USB storage devices also pose significant security risks for users and organi-zations, such as:

•Introducing malware or viruses to laptops and desktops

•Exposing sensitive data to unauthorized access or disclosure

•Losing or stealing data due to device loss or theft

•Violating security policies or regulations

Therefore, an exception to the security policy that disables access to USB storage de-vices on laptops and desktops should only be granted if the benefit of using them is greater than the potential risk of compromising them. For example, if a user needs to transfer a large amount of data from one laptop to another in a remote location where there is no network connection available, and the data is encrypted and protected by a strong password on the USB device, then the benefit of using the USB device may be greater than the risk of losing or exposing it. The other options are not the strongest justifications for granting an exception to the security policy that disables access to USB storage devices on laptops and desktops. Enabling USB storage devices based on user roles is not a justification, but rather a possible way of implementing a more gran-ular or flexible security policy that allows different levels of access for different types of users3. Users accepting the risk of noncompliance is not a justification, but rather a requirement for requesting an exception to a security policy that acknowledges their responsibility and accountability for any consequences of noncompliance4. Accessing being restricted to read-only is not a justification, but rather a possible control that can reduce the risk of introducing malware or viruses from USB devices to laptops and desktops5. References: 1: Information Security Policy - NIST 2: Policy Exception Man-agement - ISACA 3: Deploy and manage Removable Storage Access Control using In-tune - Microsoft Learn 4: Policy Exception Request Form - University of California 5: Re-movable Media Policy Writing Tips - CurrentWare

The most important information to present to senior management when reporting on the performance of the initiative to mitigate risk associated with ransomware is the cost and associated risk reduction, which means showing the value and effectiveness of the technical and administrative controls in terms of reducing the likelihood and impact of ransomware incidents and data extortion, and comparing them with the investment and resources required to implement and maintain them. The cost and associated risk reduction can help senior management to evaluate the return on investment (ROI) and the alignment with the business objectives and risk appetite of the initiative.

References = Ransomware Risk Management - NIST, #StopRansomware Guide | CISA

The business owner is the best suited role to validate user access requirements during an annual user access review, because the business owner is responsible for determining the business needs and objectives of the users, as well as defining the appropriate access rights and privileges for each user role. The business owner is also accountable for ensuring that the user access is aligned with the organization’s policies and standards, and that the user access review is conducted effectively and efficiently1. The access manager, the IT director, and the system administrator are not as suitable as the business owner, because they are more involved in the technical and operational aspects of user access management, rather than the business aspects.

References = Effective User Access Reviews