Which type of system is MOST effective for monitoring cyber incidents based on impact and...

SIEM systems collect and analyze log data from across the organization, allowing for real-time monitoring, incident correlation, and end-to-end tracking of response activities — including severity classification and closure.

“SIEM tools enable centralized management, prioritization, and documentation of incidents, making them essential for impact tracking and incident lifecycle management.”

— CISM Review Manual 15th Edition, Chapter 4: Incident Management Systems*

While EDR and XDR help detect threats, SIEMs offer the full scope for impact-based tracking.