CRISC Leak Questions

The most likely factor to change as a result of a zero-day vulnerability being discovered in a globally used brand of hardware server that allows hackers to gain access to affected IT systems is the risk likelihood. Risk likelihood is the probability or frequency of a risk event occurring, or the possibility of a risk event occurring within a given time period. Risk likelihood is one of the key dimensions of risk analysis, along with the risk impact. Risk likelihood helps to determine the severity and priority of the risk, and to select the most appropriate and effective risk response. Risk likelihood also helps to evaluate the cost-benefit and trade-off of the risk response, and to measure the residual risk and the risk performance. The risk likelihood is likely to change as a result of a zero-day vulnerability, because a zero-day vulnerability is a security flaw that has been discovered but not yet patched by the vendor, which means that it can be exploited by hackers before the affected systems can be updated or protected. A zero-day vulnerability increases the risk likelihood, because it creates a window of opportunity for hackers to launch attacks that could compromise the affected systems, and because it may not be detected or prevented by the existing security controls or measures. The other options are not as likely to change as the risk likelihood, although they may also be affected or influenced by the zero-day vulnerability. Control effectiveness, risk appetite, and key risk indicator (KRI) are all factors that could change as a result of a zero-day vulnerability, but they are not the most likely factor to change. Control effectiveness is the extent to which the risk controls or responses achieve the intended risk objectives or outcomes. Control effectiveness could change as a result of a zero-day vulnerability, because the existing controls may not be able to detect or prevent the exploitation of the vulnerability, or because new or additional controls may be needed to address the vulnerability. However, control effectiveness is not the most likely factor to change, because it depends on the type and level of the controls that are already in place or that can be implemented, and because it may not change until the vulnerability is actually exploited or the risk response is executed. Risk appetite is the amount and type of risk that the organization is willing to accept or pursue in order to achieve its objectives. Risk appetite could change as a result of a zero-day vulnerability, because the vulnerability could affect the organization’s objectives or operations, and because the organization may need to adjust its risk tolerance or threshold to cope with the vulnerability. However, risk appetite is not the most likely factor to change, because it is a strategic and long-term decision that is driven by the organization’s mission, vision, values, and strategy, and because it may not change until the vulnerability is resolved or the risk impact is realized. Key risk indicator (KRI) is a metric that measures the likelihood and impact of risks, and helps monitor and prioritize the most critical risks. KRI could change as a result of a zero-day vulnerability, because the vulnerability could increase the likelihood and impact of the risks, and because the organization may need to update or revise its KRI to reflect the current risk situation. However, KRI is not the most likely factor to change,because it is a monitoring and reporting tool that is derived from the risk analysis and response, and because it may not change until the vulnerability is exploited or the risk response is implemented. References = Risk and Information Systems Control Study Manual, Chapter 4, Section 4.3.1, page 4-25.

Conducting vulnerability scans is the best way for a risk practitioner to validate the effectiveness of a patching program. Vulnerability scans are automated tools that identify and report on the vulnerabilities in a system or network, such as missing patches, misconfigurations, or outdated software. Vulnerability scans can help the risk practitioner to verify that the patches have been applied correctly and consistently, and that there are no remaining or new vulnerabilities that need to be addressed. Conducting penetration testing, interviewing IT operations personnel, and reviewing change control board documentation are also useful methods to evaluate the patching program, but they are not as comprehensive, objective, or timely as vulnerability scans. References = Risk and Information Systems Control Study Manual, Chapter 2, Section 2.3.3, page 2-28.

The first thing that should be done by IT governance to support the development of a new risk management plan to specifically address legal and regulatory risk scenarios is to establish IT-specific compliance objectives. Compliance objectives are the goals or targets that the organization sets to ensure that its IT activities and processes comply with the relevant laws, regulations, standards, and contracts. Compliance objectives help to define the scope, criteria, and expectations for the IT compliance program, and to align the IT compliance activities with the organization’s strategy, risk appetite, and performance measures. Compliance objectives also help to communicate and demonstrate the organization’s commitment and accountability for IT compliance to the internal and external stakeholders, such as the board, management, regulators, auditors, and customers. The other options are not the first thing that should be done, although they may be useful or necessary steps or components of the IT compliance program. Requesting a regulatory risk reporting methodology, requiring critical success factors (CSFs) for IT risks, and communicating IT key risk indicators (KRIs) and triggers are all activities that can help to implement and monitor the IT compliance program, but they require the prior definition and agreement of the IT compliance objectives. References = Risk and Information Systems Control Study Manual, Chapter 2, Section 2.4.1, page 2-37.

 The main purpose of selecting a risk response is to mitigate the residual risk to be within tolerance. Residual risk is the risk that remains after applying a risk response. Risk tolerance is the amount and type of risk that an organization is willing to accept in order to achieve its objectives. Risk response is the process of selecting and implementing actions to address risk. The goal of risk response is to reduce the residual risk to a level that is acceptable to the organization and its stakeholders. The other options are not the main purpose of selecting a risk response, although they may be secondary benefits or outcomes. References = Risk and Information Systems Control Study Manual, Chapter 4, Section 4.3.1, page 4-23.