A security exceptions process is the most effective governance mechanism for handling noncompliance with standards because it creates a controlled, risk-based method to manage deviations while maintaining accountability. In CISM terms, standards define minimum acceptable baselines, but real-world constraints (legacy systems, third-party limitations, business urgency) sometimes require temporary or conditional deviations. A formal exception process ensures: the business documents the justification, identifies the risk owner, evaluates risk impact, defines compensating controls, sets an expiration date, and tracks remediation to closure. Creating new standards (A) does not fix noncompliance and can increase confusion. Stopping activities (C) may be necessary for extreme/unacceptable risk, but it is not the “best approach” in general because it can unnecessarily disrupt business operations. Extra monitoring (D) can be a compensating control, but without a formal exception workflow it lacks governance, approval, and traceability.