The greatest benefit of incorporating information security governance into the corporate governance framework is D. Management accountability for information security. This is because management accountability for information security means that the senior management and the board of directors are responsible for defining, overseeing, and supporting the information security strategy, policies, and objectives of the organization, and ensuring that they are aligned with the business goals, stakeholder expectations, and regulatory requirements. Management accountability for information security also means that the senior management and the board of directors are accountable for the performance, value, and effectiveness of the information security program, and for the management and mitigation of the information security risks and incidents. Management accountability for information security can help to foster a culture of security awareness and responsibility, and to enhance the trust and confidence of the customers, partners, and regulators in the organization’s information security capabilities.

Management accountability for information security means that the senior management and the board of directors are responsible for defining, overseeing, and supporting the information security strategy, policies, and objectives of the organization, and ensuring that they are aligned with the business goals, stakeholder expectations, and regulatory requirements. (From CISM Manual or related resources)

References = CISM Review Manual 15th Edition, Chapter 1, Section 1.2.1, page 181; CISM domain 1: Information security governance [Updated 2022] | Infosec2; Information Security Governance: Guidance for Boards of Directors and Executive Management, 2nd Edition3