Health Data Breach Tracker/Monthly roundup
Biggest health data breaches: August 2025
In August 2025, 74 health data breaches affecting 500 or more people were reported to the HHS Office for Civil Rights, with a combined 18,070,193 individuals affected as reported. Hacking/IT Incident was the most common breach type this month, and healthcare provider accounted for the most reports. Counts are as reported to OCR and may overlap across breaches; a listing does not imply wrongdoing.
Breaches reported
74
Individuals affected
18,070,193
Hacking or IT incidents
65
- 1Aflac Incorporated (“Aflac”)GA · Health Plan · Hacking/IT Incident · Aug 8, 202513,924,906
- 2DaVita Inc.CO · Healthcare Provider · Hacking/IT Incident · Aug 1, 20252,689,826
- 3Aspire Rural Health SystemMI · Healthcare Provider · Unauthorized Access/Disclosure · Aug 20, 2025138,386
- 4MRI Associates of St. Pete, Inc. d/b/a Saint Pete MRIFL · Healthcare Provider · Hacking/IT Incident · Aug 19, 2025138,209
- 5Highlands Oncology Group PAAR · Healthcare Provider · Hacking/IT Incident · Aug 1, 2025115,358
- 6Vital Imaging Medical Diagnostic Centers, LLCFL · Healthcare Provider · Hacking/IT Incident · Aug 21, 2025111,509
- 7University of Iowa Community Home CareIA · Healthcare Provider · Hacking/IT Incident · Aug 29, 2025109,029
- 8University of Iowa Health CareIA · Healthcare Provider · Hacking/IT Incident · Aug 29, 2025101,875
- 9Oglethorpe, Inc.FL · Healthcare Provider · Hacking/IT Incident · Aug 5, 202592,332
- 10CPAP Medical Supplies and Services Inc.FL · Healthcare Provider · Hacking/IT Incident · Aug 15, 202590,133
- 11Woodlawn HospitalIN · Healthcare Provider · Hacking/IT Incident · Aug 25, 202562,278
- 12Tombigbee Healthcare Authority dba Whitfield Regional HospitalAL · Healthcare Provider · Hacking/IT Incident · Aug 12, 202558,081
- 13Langdon & Company, LLP Certified Public AccountantsNC · Business Associate · Hacking/IT Incident · Aug 1, 202546,061
- 14Pediatric Otolaryngology Head & Neck Surgery Associates, P.A.FL · Healthcare Provider · Hacking/IT Incident · Aug 18, 202543,446
- 15Alert Medical AlarmsPA · Healthcare Provider · Hacking/IT Incident · Aug 15, 202539,218
- 16Greater Pittsburgh Orthopaedics AssociatesPA · Healthcare Provider · Hacking/IT Incident · Aug 27, 202535,000
- 17MDLand International CorporationNY · Business Associate · Hacking/IT Incident · Aug 4, 202522,586
- 18Beech Acres Parenting CenterOH · Healthcare Provider · Hacking/IT Incident · Aug 22, 202519,315
- 19Think Big Health Care SolutionsFL · Business Associate · Hacking/IT Incident · Aug 19, 202517,259
- 20Meridian Valley Laboratories, Inc.WA · Healthcare Provider · Hacking/IT Incident · Aug 29, 202516,341