Operational SIEM Tuning & Log Source Onboarding is an ongoing SOC service focused on improving the effectiveness, accuracy, and coverage of an existing SIEM platform during day-to-day operations. The service includes onboarding new log sources into the SIEM, validating log quality and completeness, normalizing and parsing events, and tuning correlation rules and alerts to reduce false positives and improve detection fidelity. Tuning activities are driven by real incident data, alert trends, threat intelligence, and changes in the environment. Unlike SIEM architecture or deployment services, this engagement does not involve redesigning the SIEM platform. It operates strictly within the current SIEM environment to ensure logs are actionable, detections remain relevant, and the SOC can respond efficiently. The outcome is a SIEM that delivers high-value alerts, broad visibility across assets, and consistent detection performance as the environment evolves.