Every public data breach

44 disclosed this week · 26,355 on record

Deaconess Health System

Disclosed Mar 20, 2026203,874 affectedConfirmed

Official notice

The covered entity (CE), Deaconess Health System, reported that its business associate (BA) experienced a breach of its network that affected the protected health information of 8,941 individuals. The PHI involved clinical and demographic information. The CE notified HHS, the media, and the affected individuals. In response to the breach, the CE and BA implemented additional administrative, technical, and security safeguards to better protect PHI.

What is known

People affected203,874 (as reported by the organization)
DisclosedMar 20, 2026
DiscoveredJun 26, 2026
HappenedDec 2, 2025
AttackHacking
Data exposedSocial Security numbersHealthInsuranceDates of birthNames
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Deaconess Health System

History of this record
attack2026-09-25
unknown to hackingby backfillSource
disclosed2026-09-25
2026-08-07 to 2026-03-20by backfillSource
summary2026-09-25
empty to The covered entity (CE), Deaconess Health System, reported that its business associate (BA) experienced a breach of its network that affected the protected health information of 8,941 individuals. The PHI involved clinical and demographic iby backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (Texas AG), confirmed by Texas AG. Record counts are as reported. Not legal advice.

Everything about Deaconess Health System