Case Study: OhioHealth achieves accelerated incident investigations and real-time security analytics with Splunk Enterprise

OhioHealth Accelerates Incident Investigations With Real-Time Data Analytics

OhioHealth, a not‑for‑profit health network serving 40 counties with 28,000 associates across 11 hospitals and many outpatient services, needed to secure a complex, networked IT environment and meet HIPAA requirements. Its existing security tools (firewalls, DLP, AD controllers, antivirus and a legacy SIEM) worked in silos, making ad hoc analysis, cross‑platform correlation and incident investigations slow and difficult.

The team deployed Splunk Enterprise with forwarders on firewalls, domain controllers, switches and endpoints to centralize and correlate logs in real time. The solution accelerated investigations, enabled automated analytics and live dashboards, supported an internal phishing program (saving about $5,000 per external test), avoided up to $30,000/year in AD audit software costs, and improved operational visibility for the NOC while positioning Splunk to replace the legacy SIEM.

OhioHealth