How can one determine the effectiveness of incident response using Splunk ES?

The effectiveness of incident response can be accurately assessed by examining trends and response times through incident review metrics. Utilizing these metrics allows security teams to gain insight into various performance indicators, such as the average time it takes to respond to incidents, the efficacy of the response actions taken, and how different types of incidents are handled over time. This quantitative analysis can reveal patterns, identify bottlenecks in the response process, and highlight areas for improvement, thereby enhancing overall incident management strategies.

Furthermore, relying solely on random sampling of incidents would not provide a comprehensive view, as it could miss critical trends or outliers affecting the incident response process. Monitoring only real-time alerts neglects the importance of historical data, which is essential for trend analysis. Comparing the number of alerts generated does not adequately reflect the quality or effectiveness of the incident response, as a high number of alerts does not necessarily equate to efficient or successful management of incidents. Instead, a detailed examination of response metrics gives a clearer picture of how well incidents are handled and where improvements can be made.