Deaconess Health System
ent_a876f78e2af123cf8831ee55
Disclosures
9
State AG · HHS OCR · Leak Site · 4 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
203,874
nationwide · State AG TX
Leak-site claims
1
unverified actor claims
Identity resolution
- Canonical name
- Deaconess Health System
- Normalized
- deaconess health system— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- deaconess.com
Disclosure history (9)newest first
- Texas State AGas victim2026-08-07
Deaconess Health System based in Evansville, Indiana, a healthcare – medical provider entity reported a data breach to the Texas Attorney General. The breach was discovered on 2026-06-26 and reported on 2026-08-07. 374 Texas residents were affected. 203,874 individuals affected in total. Types of information involved: Name of individual;Social Security Number Information;Driver’s License number;Medical Information;Health Insurance Information;Date of Birth. Consumers were notified via U.S. Mail.
- Illinois State AGas victim2026-08-01
DEACONESS HEALTH SYSTEM filed a data-breach notice with the Illinois Attorney General in August 2026 (case 26-08-1370). The register records the breach as discovered on June 26, 2026. Personal information types reported: drivers license, financial account number, medical information, ssn. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
- INDIANAHHS OCRas victim2026-03-20
Deaconess Health System (Indiana) reported to HHS OCR on 2026-03-20 a Hacking/IT Incident affecting 8,941 individuals. Breached information was located on Network Server and Other systems. A business associate was present. No further detail was available in the HHS web description.
- Illinois State AGas victim2026-03-01
DEACONESS HEALTH SYSTEM, INC. filed a data-breach notice with the Illinois Attorney General in March 2026 (case 26-03-1080). The register records the breach as discovered on February 2, 2026. Personal information types reported: medical information, ssn. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
- GLOBALLeak Siteas victim2026-01-07
Deaconess Health System is a nonprofit regional health care organization based in Evansville, Indiana, United States. It operates hospitals, clinics, and specialty care centers across the tri-state area of Indiana, Illinois, and Kentucky. Services include emergency care, oncology, cardiology, orthopedics, and behavioral health. Founded in 1892, it remains one of the largest employers in southwestern Indiana.
- Illinois State AGas victim2025-10-01
DEACONESS HEALTH SYSTEM filed a data-breach notice with the Illinois Attorney General in October 2025 (case 25-10-543). The register records the breach as discovered on July 31, 2025. Personal information types reported: medical information, ssn. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
- Indiana State AGas victim2022-02-23
Deaconess Health System, Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2020-06-17 and was reported on 2022-02-23. 41 Indiana residents were affected. 46 individuals affected in total.
- Illinois State AGas victim2022-01-01
DEACONESS HEALTH SYSTEM filed a data-breach notice with the Illinois Attorney General during 2022 (case 2022-308). The register records the breach as discovered on January 26, 2022. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
- Indiana State AGas victim2021-04-30
Deaconess Health System, Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2021-04-27 and was reported on 2021-04-30. 1 Indiana residents were affected.