Ascension Health reports hacking incident affecting 437,329 individuals
Ascension Health, a healthcare provider, filed a breach report with HHS OCR on April 28, 2025. The filing describes a hacking/IT incident that compromised the protected health information of 437,329 individuals. The unauthorized access occurred on a network server. While the record lists the entity's state as Missouri, it does not limit the breach to Missouri operations. The submission date marks when the report was sent to regulators, not when the breach occurred. Healthcare administrators should monitor for further details regarding specific data elements exposed and notifications to affected patients.
Sources differ:
- The HHS breach portal lists the breach location as a network server. Becker's Hospital Review and other news reports say Ascension described a former business partner's software flaw and said its own systems were not affected.
Primary source: HHS OCR Breach Portal — Ascension Health (MO) · reported 04/28/2025 · 437,329 individuals · Checked against the record 2026-10-26