Metrics data refers to quantitative information collected to monitor, measure, and analyze the performance, usage, or security posture of systems, networks, or applications. In cybersecurity, metrics data is crucial for tracking incidents, detecting anomalies, and evaluating the effectiveness of security controls. Examples include the number of blocked attacks, system uptime, response times, and user activity logs. This data helps organizations make informed decisions, improve defenses, and demonstrate compliance with regulations. Proper collection and analysis of metrics data enable proactive risk management and continuous improvement of cybersecurity strategies.