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The business process owner should be the risk owner for the risk exposure due to weak technical controls in a newly implemented HR system, because they are responsible for the performance and outcomes of the HR business process, and they understand the business requirements, expectations, and impact of the HR system. The business process owner can also evaluate the trade-offs between the potential benefits and costs of the HR system, and the potential risks and consequences of a failure or breach of the system. The business process owner can also communicate and justify their risk acceptance or mitigation decision to the senior management and other stakeholders, and ensure that the risk is monitored and reviewed regularly. The other options are less appropriate to be the risk owner for this risk exposure. The chief risk officer is responsible for overseeing the enterprise-wide risk management framework and process, which includes ensuring the identification, assessment, and reporting of risks. However, they are not the owner of the HR system or the HR business process, and they may not have the full knowledge or authority to accept or mitigate the risk on behalf of the business. The project manager is responsible for managing the implementation of the HR system, which includes ensuring the delivery of the system within the scope, time, and budget constraints. However, they are not the owner of the HR system or the HR business process, and they may not have the full knowledge or authority to accept or mitigate the risk on behalf of the business. The chief information officer is responsible for managing the IT function and resources, which includes providing the technical support and security for the HR system. However, they are not the owner of the HR system or the HR business process, and they may not have the full knowledge or authority to accept or mitigate the risk on behalf of the business. References = Getting risk ownership right 1

 The results of risk analyses should be presented in quantitative or qualitative terms based primarily on the requirements of management, because they are the intended audience and users of the risk information, and they have the authority and responsibility to make risk-based decisions. The requirements of management may vary depending on the purpose, scope, and context of the risk analysis, and the level of detail, accuracy, and reliability that they need. Quantitative risk analysis uses numerical data and mathematical models to estimate the probability and impact of risks, and to express the risk exposure and value in monetary or other measurable units. Qualitative risk analysis uses descriptive data and subjective judgments to assess the likelihood and severity of risks, and to rank the risks according to their relative importance or priority. Both methods have their advantages and disadvantages, and they can be used separately or together, depending on the situation and the availability of data and resources. However, the primary factor that determines the choice of the method is the requirements of management, as they are the ones who will use the risk information to support their objectives, strategies, and actions. References = Risk IT Framework, ISACA, 2022, p. 141

A cost-benefit analysis is the best guidance when selecting an appropriate risk treatment plan. A risk treatment plan is a document that describes the actions or measures that are taken or planned to modify the risk, such as reducing, avoiding, transferring, or accepting the risk1. Selecting an appropriate risk treatment plan means choosing the most suitable and effective option for addressing the risk, based on the organization’s objectives, strategies, and risk criteria2. A cost-benefit analysis is a method of comparing the benefits and costs of different alternatives or options, and selecting the one that maximizes the net benefit or value3. A cost-benefit analysis is the best guidance when selecting an appropriate risk treatment plan, because it helps to:

Evaluate the feasibility, effectiveness, and efficiency of the risk treatment options, and compare them against the organization’s risk appetite and tolerance;

Balance the benefits and costs of the risk treatment options, and consider both the quantitative and qualitative aspects of the risk and the risk response;

Optimize the use of the organization’s resources and capabilities, and ensure that the risk treatment options are aligned and integrated with the organization’s goals and values;

Support the risk decision making and prioritization, and provide a rational and transparent basis for selecting the best risk treatment option. The other options are not the best guidance when selecting an appropriate risk treatment plan, as they are either less comprehensive or less relevant than a cost-benefit analysis. A risk mitigation budget is a document that allocates the financial resources for implementing and maintaining the risk mitigation actions or measures4. A risk mitigation budget can help to ensure the availability and adequacy of the funds for the risk treatment options, as well as to monitor and control the risk treatment expenditures. However, a risk mitigation budget is not the best guidance when selecting an appropriate risk treatment plan, as it does not address the benefits or value of the risk treatment options, or the suitability or effectiveness of the risk treatment options. A business impact analysis is a method of estimating the potential effects or consequences of a risk on the organization’s objectives, operations, or performance5. A business impact analysis can help to assess the severity and priority of the risk, as well as to identify the critical assets and resources that are involved or impacted by the risk. However, a business impact analysis is not the best guidance when selecting an appropriate risk treatment plan, as it does not address the costs or feasibility of the risk treatment options, or the alternatives or options for the risk treatment. A return on investment is a metric that measures the profitability or efficiency of an investment, project, or activity, by comparing the benefits and costs of the investment, project, or activity6. A return on investment can help to evaluate the performance and effectiveness of the risk treatment options, as well as to compare the risk treatment options with other investments, projects, or activities. However, a return on investment is not the best guidance when selecting an appropriate risk treatment plan, as it does not address the qualitative or intangible aspects of the risk and the risk response, or the risk appetite and tolerance of the organization. References = Risk and Information Systems Control Study Manual, 7th Edition, Chapter 2, Section 2.1.8, Page 61.

An intrusion detection system (IDS) is a network security tool that monitors and analyzes network traffic for signs of malicious or suspicious activity, such as unauthorized access, data exfiltration, malware infection, or denial-of-service attack. An IDS can detect and alert the organization to potential threats based on predefined rules or signatures, or based on anomalies or deviations from normal network behavior. An IDS can also generate logs that record the details of the network events and incidents, such as the source, destination, content, and context of the network traffic. By analyzing the IDS logs, the organization can identify and validate the suspicious network activity, and determine its scope, impact, and root cause. The organization can also use the IDS logs to support the incident response and remediation process, and to improve the network security and resilience. The other options are less effective ways to ensure that suspicious network activity is identified. Analyzing server logs can provide some information about the network activity, but it may not be sufficient or timely to detect and validate the suspicious or malicious activity, as server logs only capture the events or activities that occur on the server, and not on the entire network. Using a third-party monitoring provider can help to outsource the network monitoring and analysis function, but it may not be the best option, as it may introduce additional risks, such as data privacy, vendor reliability, or service quality issues. Coordinating events with appropriate agencies can help to share information and resources with other organizations or authorities, such as law enforcement, regulators, or industry peers, but it may not be the best option, as it may depend on the availability and cooperation of the agencies, and it may not be feasible or desirable to disclose the network activity to external parties. References = Monitoring for Suspicious Network Activity: Key Tips to Secure Your Network 1