Which tool is best for a systems manager to track key performance indicators for security improvements?

Using a project dashboard is the most effective way for a systems manager to track key performance indicators (KPIs) related to security improvements. A project dashboard provides a visual representation of the project's performance metrics and progress towards specific goals. It consolidates various data points and KPIs into one accessible format, making it easier to monitor trends and assess the effectiveness of security initiatives over time.

The dashboard allows the manager to quickly evaluate security performance, identify areas needing attention, and make informed decisions based on real-time data. This clarity enables proactive management of security improvements, facilitating better resource allocation and strategic planning.

Other tools such as a defect log are primarily used for tracking issues or bugs in products but do not provide a comprehensive view of overall performance or security metrics. A task board focuses more on the status of individual tasks and team workload rather than strategic indicators. Lastly, a stakeholder engagement plan is designed for communication and managing relationships with stakeholders, which is not directly related to tracking performance metrics. Thus, the project dashboard emerges as the superior choice for monitoring KPIs associated with security improvements.