The most important thing to do when establishing an enterprise IT risk management program is to review the alignment with the organization's strategy. The organization's strategy is the plan or direction that the organization follows to achieve its vision, mission, and goals. The IT risk management program should be aligned with the organization's strategy, so that it supports and enables the organization's strategic objectives, and addresses the IT risks that could affect the organization's performance and value. Reviewing the alignment with the organization's strategy helps to ensure that the IT risk management program is relevant, effective, and consistent with the organization's expectations and needs. The other options are not as important as reviewing the alignment with the organization's strategy, although they may be useful or necessary steps or components of the IT risk management program. Understanding the organization's information security policy, validating the organization's data classification scheme, and reporting identified IT risk scenarios to senior management are all activities that can help to implement and improve the IT risk management program, but they are not the initial or primary thing to do. References = Risk and Information Systems Control Study Manual, Chapter 2, Section 2.2.1, page 2-12.