Fully Revealed Incidents Rate
This metric can also help get a bead on the effectiveness of the incident response and security analyst functions within a program.
"What is the rate of incidents handled by security team into which they have a full understanding of the reason for the alert, the circumstances causing it, its implications, and effect?" says Div of Cybereason.
The lower the rate compared to overall volume of opened cases will show gaps in visibility and could trigger an ask for more investment in human resources or tools.