The ULTIMATE responsibility for ensuring the objectives of an information security framework are being met...

The ultimate responsibility for ensuring the objectives of an information security framework are being met belongs to the board of directors, as they are accountable for the governance of the organization and the oversight of the information security strategy. The board of directors should ensure that the information security framework aligns with the business objectives, supports the business processes, and complies with the legal and regulatory requirements. The board of directors should also monitor the performance and effectiveness of the information security framework and provide guidance and direction for its improvement.

References = CISM Review Manual, 16th Edition eBook1, Chapter 1: Information Security Governance, Section: Enterprise Governance, Subsection: Board of Directors, Page 18.