AgileBlue Cerulean Agent vs Splunk Enterprise Security: Side-by-Side Comparison (2026)

Short answer

Mid-market and enterprise security teams managing hybrid infrastructure will get the most from AgileBlue Cerulean Agent because its behavioral analytics catch threats that signature-based detection misses, and the lightweight agent actually deploys without grinding endpoints to a halt. The tool covers four NIST CSF 2.0 functions across detection and incident response, with particular strength in continuous monitoring and threat analysis. Skip this if your team needs deep forensic replay or extensive third-party integrations; Cerulean Agent prioritizes real-time detection over post-incident investigation depth. Mid-market and enterprise security teams with mature detection programs need Splunk Enterprise Security for alert fatigue reduction, not raw event collection. Risk-Based Alerting cuts false positives by surfacing genuine threats first, while built-in SOAR automation and UEBA handle investigation at scale; the platform covers detection and response workflows with particular strength in incident analysis and mitigation (RS.AN, RS.MI). Skip this if your primary need is asset discovery or you're still building foundational monitoring; Splunk assumes you already have detection signals worth prioritizing.