According to the Standards, the risk register should include information about identified risks and how these are being managed. Management's acceptance of inadequate controls for a significant risk such as cybersecurity should be documented as it represents a known risk exposure that the organization has chosen to accept. This helps ensure transparency and informs subsequent audit activities and decisions.
International Standards for the Professional Practice of Internal Auditing, specifically on risk assessment and management.

According to IIA guidance, the internal audit charter is a formal document that defines the internal audit activity ' s purpose, authority, and responsibility. It establishes the internal audit activity ' s position within the organization, including the nature of the chief audit executive's functional reporting relationship with the board; authorizes access to records, personnel, and physical properties relevant to the performance of engagements; and defines the scope of internal audit activities. Final approval of the internal audit charter is done by the board, not just senior management. Furthermore, the charter might describe the expectations for communicating the results of the quality assurance and improvement program, which ensures that the internal audit activity continues to operate effectively and efficiently.
IIA Standard 1000: Purpose, Authority, and Responsibility; and Standard 1300: Quality Assurance and Improvement Program.