IL ยท HHS OCR reports
HIPAA breaches in Illinois
HIPAA breaches affecting 500 or more individuals reported to HHS OCR by covered entities listed in Illinois.
Reports
364
Individuals affected
22,594,404
Under investigation
28
Top type: Hacking/IT Incident
State breach notification law
Statute citation not extracted; see the state legislature website.
Timing: notify in the 'most expedient time possible and without unreasonable delay.' No specific numeric
Read the Illinois data breach notification law summaryAll reports, newest first
Page 8 of 8. 364 reports.
| Covered entity | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|
| Genesis Clinical Laboratory | Healthcare Provider | 1,070 | Apr 25, 2011 | Hacking/IT Incident | Archive (closed) |
| MacNeal Hospital | Healthcare Provider | 845 | Apr 25, 2011 | Hacking/IT Incident | Archive (closed) |
| West Lake Hospital | Healthcare Provider | 686 | Apr 25, 2011 | Hacking/IT Incident | Archive (closed) |
| MacNeal Physician Group | Healthcare Provider | 532 | Apr 25, 2011 | Hacking/IT Incident | Archive (closed) |
| Healthcare Solutions Team, LLC | Business Associate | 675 | Apr 19, 2011 | Unauthorized Access/Disclosure | Archive (closed) |
| Cook County Health & Hospitals System | Healthcare Provider | 556 | Dec 17, 2010 | Theft | Archive (closed) |
| St. James Hospital and Health Centers | Healthcare Provider | 967 | Sep 24, 2010 | Improper Disposal | Archive (closed) |
| Cook County Health & Hospitals System | Healthcare Provider | 7,081 | Aug 20, 2010 | Theft | Archive (closed) |
| Beauty Dental, Inc. | Healthcare Provider | 657 | Aug 5, 2010 | Loss, Theft | Archive (closed) |
| Rainbow Hospice and Palliative Care | Healthcare Provider | 1,000 | May 26, 2010 | Theft | Archive (closed) |
| Millennium Medical Management Resources, Inc. | Business Associate | 180,111 | Apr 29, 2010 | Theft | Archive (closed) |
| VHS Genesis Lab Inc. | Healthcare Provider | 6,800 | Apr 5, 2010 | Loss | Archive (closed) |
| Carle Clinic Association | Healthcare Provider | 1,300 | Jan 28, 2010 | Theft | Archive (closed) |
| Advocate Health Care | Healthcare Provider | 812 | Jan 22, 2010 | Theft | Archive (closed) |
Source: HHS OCR Breach Portal, OCR export October 2026.