Kaiser Permanente, the largest nonprofit health plan in the U.S., is experiencing intermittent system outages affecting electronic health records, billing, pharmacy, radiology, lab services, and call centers across its network of 40 hospitals and 600+ medical offices. Patients are facing limited access to key services such as e-visits, test results, and prescription processing, with staff reverting to manual processes in some areas.

While no malicious activity has been confirmed and no group has claimed responsibility, the disruption raises fresh concerns given Kaiser’s major data breach in April, which exposed the personal information of over 13.4 million patients via third-party web trackers.

These repeated incidents reinforce the critical importance of robust network-to-application performance management, availability and infrastructure monitoring, and real-time situational awareness across all network traffic. As healthcare systems grow increasingly complex and reliant on digital tools, uninterrupted patient care and data protection demand comprehensive monitoring, resilient contingency plans, and strict oversight of third-party integrations. Read more about this story on our LinkedIn page