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Health Care Service

Disclosed Apr 13, 20251 year ago2,944 affectedConfirmed

Official notice

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.

What is known

People affected2,944 (as reported to HHS)
DisclosedApr 13, 2025
AttackInsider
Data exposedNames, Health
SectorInsurance · US
StatusConfirmed

Sources

Source
HHS OCR breach report (archive, resolved): Health Care Service (Health Plan, IL)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalApr 13, 20252,944

Other breaches at Health Care Service

BreachAffected
Disclosed Aug 21, 2023Aug 21, 20233 years agoHacking221K
Disclosed Jun 15, 2021Jun 15, 20215 years agoHacking543
Disclosed Apr 24, 2019Apr 24, 20197 years agoInsider1,182
Disclosed Jun 4, 2018Jun 4, 20188 years ago161
Disclosed Mar 27, 2015Mar 27, 201511 years agoLost or stolen device501
Disclosed Oct 26, 2012Oct 26, 201213 years agoLost or stolen device501
Disclosed Jul 28, 2011Jul 28, 201115 years agoLost or stolen device501
History of this record
  • 2026-09-25 · added · backfill source

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

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