Unauthorized Access to Cerner Health Data Exposes Patient Information

In October 2025, Oracle Health, formerly Cerner Corporation, reported that an unauthorized third party accessed legacy Cerner systems, potentially exposing sensitive patient information. Patients affected by this incident are only now being notified, with some hospitals, like NKC Health, informing patients as late as January 2026. The breach involves electronic health records and financial data stored on a legacy network.