= According to the CISM Review Manual, the information security manager should actively engage with stakeholders to align security and business goals. This means understanding the business needs, expectations, and risk appetite of the stakeholders, and communicating the value and benefits of security initiatives to them.
By engaging with stakeholders, the information security manager can also gain their support and commitment for security programs and projects, and ensure that security objectives are aligned with business strategy and priorities. References = CISM Review Manual, 16th Edition, ISACA, 2020, page 23.

Cost-benefit analysis (CBA) is a method of comparing the costs and benefits of different alternatives for achieving a desired outcome. CBA can help information security managers to choose the best controls to mitigate risk to acceptable levels by providing a rational and objective basis for decision making. CBA can also help information security managers to justify their choices to senior management, stakeholders, and auditors by demonstrating the value and return on investment of the selected controls. CBA can also help information security managers to prioritize and allocate resources for implementing and maintaining the controls12.
CBA involves the following steps12:
Identify the objectives and scope of the analysis
Identify the alternatives and options for achieving the objectives
Identify and quantify the costs and benefits of each alternative
Compare the costs and benefits of each alternative using a common metric or criteria Select the alternative that maximizes the net benefit or minimizes the net cost Perform a sensitivity analysis to test the robustness and validity of the results Document and communicate the results and recommendations CBA is mainly driven by the information security manager's decision, but it can also take into account other factors such as best practices, control frameworks, and regulatory requirements. However, these factors are not the primary drivers of CBA, as they may not always reflect the specific needs and context of the organization. Best practices are general guidelines or recommendations that may not suit every situation or environment. Control frameworks are standardized models or methodologies that may not cover all aspects or dimensions of information security. Regulatory requirements are mandatory rules or obligations that may not address all risks or threats faced by the organization. Therefore, CBA is the best method to choose the most appropriate and effective controls to mitigate risk to acceptable levels, as it considers the costs and benefits of each control in relation to the organization's objectives, resources, and environment12. References = CISM Domain 2: Information Risk Management (IRM) [2022 update], Five Key Considerations When Developing Information Security Risk Treatment Plans

The greatest challenge with assessing emerging risk in an organization is the incomplete identification of threats, as emerging risks are often new, unknown, or unfamiliar, and may not be fully understood or assessed. Incomplete identification of threats can lead to gaps in risk analysis and management, and expose the organization to unexpected or unprepared scenarios. The other options, such as lack of a risk framework, ineffective security controls, or presence of known vulnerabilities, are not specific to emerging risks, and may apply to any type of risk assessment. References:
* https://committee.iso.org/sites/tc262/home/projects/ongoing/iso-31022-guidelines-for-impl-2.html
* https://www.isaca.org/resources/news-and-trends/newsletters/atisaca/2023/volume-6/emerging-risk- analysis
* https://projectriskcoach.com/emerging-risks/