The covered entity (CE), Sutter Health, reported that its business associate (BA) experienced a malware attack that affected the protected health information (PHI) of 845,441 individuals. The PHI involved included names, addresses, dates of birth, diagnoses, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services and the CE and BA implemented additional administrative, technical, and security safeguards. Staff were retrained to better protect PHI.
2026-09-25 · attack: unknown to hacking · backfill source
2026-09-25 · data_types: [] to ["names","health"] · backfill source
2026-09-25 · records_basis: empty to hhs · backfill source
2026-09-25 · records: empty to 845441 · backfill source
2026-09-25 · summary: empty to The covered entity (CE), Sutter Health, reported that its business associate (BA) experienced a malware attack that affected the protected health information (PHI) of 845,441 individuals. The PHI involved included names, addresses, dates of · backfill source
