Case Study: Large Integrated Healthcare Systems Company achieves secure, consistent email communications and reduced spoofing with Proofpoint

Integrated Healthcare System Relies on Proofpoint to Keep Its Communications Secure

This large integrated healthcare system—serving more than 4,800 physicians and 36,000 employees—was exchanging thousands of emails daily and struggling with siloed, inconsistent email security. After moving users to Microsoft 365, the IT team still faced disparate mail flows, a porous legacy gateway that generated false positives, employees evading controls with personal accounts, executive-targeted phishing, and throttling of critical application emails.

The organization deployed a phased Proofpoint rollout (Targeted Attack Protection, Secure Email Relay, Email Fraud Defense, Threat Response Auto-Pull, encryption and DLP, among others) to consolidate and harden email flows. The solution reduced spoofing and phishing, eliminated application throttling, cut spam-related tickets (saving significant IT time), improved uptime and compliance, and produced a scalable, repeatable model for securing communications across sites.