The PRIMARY reason for senior management to monitor information security metrics is to ensure:

Aligning the security budget to corporate funding is a financial management task, a subset of broader corporate governance, not the primary reason for monitoring security performance.

Senior management's primary reason for monitoring information security metrics is to ensure alignment of information security with corporate governance, demonstrating due diligence and accountability in managing enterprise risks. Metrics provide a quantifiable way for management to assess if security investments and initiatives are effectively supporting strategic business goals and regulatory compliance.

Alignment of security and IT objectives is important, but corporate governance encompasses a broader organizational view beyond just IT operations.

Alignment with risk mitigation efforts is a core function of security, but the *reason* senior management monitors it is to ensure these efforts are compliant and contribute to overall governance and strategic objectives.