Deaconess Health System

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.