Performing Log Source Onboarding in SIEM

Overview

Log source onboarding is the systematic process of integrating new data sources into a SIEM platform to enable security monitoring and detection. Proper onboarding requires planning data sources, configuring collection agents, building parsers, normalizing fields to a common schema, and validating data quality. According to the UK NCSC, onboarding should prioritize log sources that provide the highest security value relative to their ingestion cost.

When to Use

• When conducting security assessments that involve performing log source onboarding in siem
• When following incident response procedures for related security events
• When performing scheduled security testing or auditing activities
• When validating security controls through hands-on testing

Prerequisites

• SIEM platform deployed (Splunk, Elastic, Sentinel, QRadar, or similar)
• Network access from source systems to SIEM collectors
• Administrative access on source systems for agent installation