Splunk Security Essentials is a free application designed to help security practitioners operationalize their data within Splunk. It includes a "Data Source Check" feature that analyzes the data indexed in Splunk, maps it to the Common Information Model (CIM), and highlights which security use cases can be implemented with the available data. This directly addresses the analyst's need to understand which data sources are being utilized and to discover their potential security applications, effectively performing a gap analysis against a library of security content.

A. Splunk ITSI: Splunk IT Service Intelligence (ITSI) is a premium monitoring and analytics solution for IT operations, focused on service health and KPIs, not on security data source analysis for threat detection.

C. SOAR: Splunk SOAR (Security Orchestration, Automation, and Response) is used to automate and orchestrate incident response workflows after a security alert has been generated, not to analyze the completeness of underlying data sources.

D. Splunk Intelligence Management: This platform is used to operationalize threat intelligence from various external sources, rather than analyzing the availability and utility of an organization's internal log data.

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1. Splunk Security Essentials Documentation: The "Use the Data Source Check" section explicitly details how the app helps users "find out what data you have in Splunk

see how it maps to data models

and learn what security content you can use."

Source: Splunk Documentation

Splunk Security Essentials

"Use the Data Source Check".

2. Splunk Security Essentials Overview: This document describes the application as a starting point for security use cases

helping users "identify the data you need to get into the Splunk platform to make the detections work."

Source: Splunk Documentation

Splunk Security Essentials

"Splunk Security Essentials".

3. Splunk IT Service Intelligence Overview: This documentation clarifies that ITSI is for gaining visibility into the health of critical IT services

which is distinct from security data source analysis.

Source: Splunk Documentation

IT Service Intelligence

"Overview of IT Service Intelligence".

4. Splunk SOAR Overview: The official documentation states that Splunk SOAR "executes security operations actions in seconds" through automated playbooks

confirming its role in response

not data source analysis.

Source: Splunk Documentation

Splunk SOAR (On-premises)

"What is Splunk SOAR?".