False Positive Reporting
Tracking the False Positive Reporting Rate (FPRR) can help put the work of lower-level analysts under the microscope, making sure that the judgments they're making on automatically filtered security event data is sifting out false positives from indicators of compromise before they escalate to others in the response team.
"Despite the implementation of automated filtering, the SOC team must make the final determination as to whether the events they are alerted to are real threats," Boison of Lockheed Martin says. "The reporting of false positives to incident handlers and higher-level management increases their already heavy workload and, if excessive, can de-motivate and cause decreased vigilance."
A high FPRR could indicate better training is needed from Level 1 Analysts or better tuning of analytics tools.
"All too often Level 1 analysts lack a good understanding and visibility to incidents cause and therefore escalate false alerts to Level 3 analysts," says Lior Div, CEO of Cyberreason. "This causes waste of expensive resources."