The HealthTech Signal

Health Data Breach Tracker/Monthly roundup

Biggest health data breaches: July 2026

In July 2026, 79 health data breaches affecting 500 or more people were reported to the HHS Office for Civil Rights, with a combined 33,658,300 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

79

Individuals affected

33,658,300

Hacking or IT incidents

69

  1. 1DentaQuest, LLCMA · Health Plan · Hacking/IT Incident · Jul 16, 202615,000,000
  2. 2Aesto, LLCAL · Business Associate · Hacking/IT Incident · Jul 31, 20269,540,683
  3. 3Unlimited Technology Systems, LLCOH · Business Associate · Hacking/IT Incident · Jul 21, 20263,803,750
  4. 4CareCloud, Inc.NJ · Business Associate · Hacking/IT Incident · Jul 24, 20263,756,469
  5. 5Lifespan Physician Group of Massachusetts, Inc. d/b/a Brown Health Medical Group-MAMA · Healthcare Provider · Hacking/IT Incident · Jul 16, 2026311,760
  6. 6Lake Region HealthcareMN · Healthcare Provider · Hacking/IT Incident · Jul 1, 2026167,617
  7. 7One Medical Group, Inc.CA · Healthcare Provider · Hacking/IT Incident · Jul 17, 2026153,174
  8. 8Madera Community HospitalCA · Healthcare Provider · Hacking/IT Incident · Jul 13, 2026150,810
  9. 9zHealth, Inc.CA · Business Associate · Hacking/IT Incident · Jul 29, 2026118,563
  10. 10Boundary Regional Community Health Center dba Kaniksu Community HealthID · Healthcare Provider · Hacking/IT Incident · Jul 21, 202688,000
  11. 11A-O-M-S, P.L.L.C. d/b/a Arkansas Oral & Maxillofacial SurgeonsAR · Healthcare Provider · Hacking/IT Incident · Jul 31, 202664,831
  12. 12Casper Orthopedic Associates, PCDC · Healthcare Provider · Hacking/IT Incident · Jul 23, 202656,197
  13. 13Heart Care Centers of IllinoisIL · Healthcare Provider · Hacking/IT Incident · Jul 10, 202652,562
  14. 14Sunshine HealthFL · Health Plan · Hacking/IT Incident · Jul 10, 202641,569
  15. 15Brookhaven ENT Allergy and Facial SurgeryMS · Healthcare Provider · Hacking/IT Incident · Jul 24, 202630,403
  16. 16Alta Orthopaedics Medical Group, Inc.PA · Healthcare Provider · Hacking/IT Incident · Jul 3, 202624,496
  17. 17Nephrology Associates, M.D., P.A.KS · Healthcare Provider · Hacking/IT Incident · Jul 29, 202624,088
  18. 18Jeffrey David Reuben, M.D.TX · Healthcare Provider · Hacking/IT Incident · Jul 27, 202617,017
  19. 19Regional Center of Orange CountyCA · Business Associate · Improper Disposal · Jul 27, 202616,545
  20. 20ZenPatient, Inc.CA · Healthcare Provider · Hacking/IT Incident · Jul 17, 202615,749
June 2026August 2026All breachesHHS OCR Breach Portal