Device vulnerabilitiesrepresent the greatest technical risk in IoT implementations. IoT devices often have limited security features, can be difficult to patch, and may be deployed in large numbers-making them a common attack vector.
Integration and obsolescence matter, butvulnerabilities directly impact data protection, system integrity, and compliance, posing an immediate and high-priority risk.
Reference:
CGEIT Review Manual: Domain 4 - Risk Optimization
COBIT 2019: DSS05 (Manage Security Services), APO12 (Manage Risk).

According to the CGEIT exam guide, the primary reason a CIO and IT senior management should stay aware of the business environment is to adjust IT strategy as needed. IT strategy is the plan that defines how IT will support and enable the business strategy and objectives of the enterprise. The business environment is the external and internal factors that affect the enterprise's performance and success, such as market trends, customer demands, competitor actions, regulatory changes, technological innovations, etc. The CIO and IT senior management should stay aware of the business environment to identify and anticipate the opportunities and threats that may arise, and to align and adapt the IT strategy accordingly. This will help to ensure that IT delivers value, benefits and competitive advantage to the enterprise, and that IT risks are managed and mitigated effectively. Reference: CGEIT Exam Candidate Guide, page 13. CGEIT Certification, What is IT Strategy?, What is Business Environment?

The best way to determine if staff competency is the root cause of the performance problems is to compare the required staff competencies with the current skills inventory of the service center staff. This will help identify any gaps or mismatches between what is expected and what is available in terms of skills and knowledge. References: CGEIT Review Manual, 7th Edition, page 113.

Information ownership is the assignment of roles and responsibilities for data protection to individuals or groups within the organization. Information owners are accountable for ensuring that data is properly classified, secured, and used in accordance with the organization's policies and standards. Information ownership facilitates governance oversight of data protection measures by providing clear lines of authority and accountability for data assets. Reference:
ISACA CGEIT Review Manual 2021, page 86: "Information ownership is the assignment of roles and responsibilities for the protection of information to individuals or groups within the enterprise." ISACA CGEIT Review Questions, Answers & Explanations Manual 2021, page 11, question 14: "The correct answer is A. Information ownership is the assignment of roles and responsibilities for the protection of information to individuals or groups within the enterprise. Information owners are accountable for ensuring that information is properly classified, secured, and used in accordance with the enterprise's policies and standards. Information ownership facilitates governance oversight of data protection measures by providing clear lines of authority and accountability for information assets."