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Health Care Service Corporation

ArchivedSubmitted 04/13/2025

Updated 10 hours ago ()

State
IL
Covered entity type
Health Plan
Individuals affected
2,944
Business associate present
No
Type of breach
Unauthorized Access/Disclosure
Location of breached information
Other
First seen by InfoSec Signals
Sep 23, 2026
Last seen in OCR export
Oct 26, 2026

OCR description

The covered entity (CE), Health Care Service Corporation, reported that it experienced a hacking incident that compromised the protected health information (PHI) of 2,944 individuals. The CE provided breach notification to the affected individuals, the media, the HHS Secretary, and posted substitute breach notice on its websites. In response to the breach, the CE implemented a variety of new safeguards on member account registration, and a series of technical improvements to detect and block suspicious activity in the member portal.

Change history

Change history
Sep 23, 2026Added to OCR's archive list

Source: HHS OCR Breach Portal, U.S. Department of Health and Human Services, Office for Civil Rights about this source

Records are reproduced as published; entity names and figures are OCR's.

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