The HealthTech Signal

Health Data Breach Tracker/Monthly roundup

Biggest health data breaches: October 2025

In October 2025, 57 health data breaches affecting 500 or more people were reported to the HHS Office for Civil Rights, with a combined 64,005,689 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

57

Individuals affected

64,005,689

Hacking or IT incidents

44

  1. 1Conduent Business Services LLCNJ · Business Associate · Hacking/IT Incident · Oct 8, 202562,224,658
  2. 2Northwest Radiologists, Inc./Mount Baker ImagingWA · Healthcare Provider · Hacking/IT Incident · Oct 28, 2025362,713
  3. 3Expert MRICA · Healthcare Provider · Hacking/IT Incident · Oct 31, 2025209,560
  4. 4Tri Century Eye Care PCPA · Healthcare Provider · Hacking/IT Incident · Oct 31, 2025200,000
  5. 5Modernizing Medicine, Inc.FL · Business Associate · Hacking/IT Incident · Oct 17, 2025198,795
  6. 6Brightstar Global Solutions CorporationRI · Health Plan · Hacking/IT Incident · Oct 3, 2025103,879
  7. 7Central Jersey Medical CenterNJ · Healthcare Provider · Hacking/IT Incident · Oct 17, 202588,000
  8. 8Sierra Vista Hospital & ClinicsNM · Healthcare Provider · Hacking/IT Incident · Oct 6, 202575,054
  9. 9North Atlantic States Carpenters Health Benefits FundMA · Health Plan · Hacking/IT Incident · Oct 17, 202568,111
  10. 10OB-GYN Associates, Ltd. dba OBGYN AssociatesNV · Healthcare Provider · Hacking/IT Incident · Oct 6, 202562,238
  11. 11Beverly Hills Oncology Medical GroupCA · Healthcare Provider · Hacking/IT Incident · Oct 31, 202557,655
  12. 12Bosch Choice Welfare Benefit PlanMI · Health Plan · Hacking/IT Incident · Oct 31, 202555,000
  13. 13Heartland Health CenterNE · Healthcare Provider · Hacking/IT Incident · Oct 17, 202543,728
  14. 14Visiting Nurse Association of Texas, LLCTX · Healthcare Provider · Hacking/IT Incident · Oct 10, 202528,515
  15. 15Southwest C.A.R.E. CenterNM · Healthcare Provider · Hacking/IT Incident · Oct 3, 202521,866
  16. 16Open Practice Solutions, LTDOH · Business Associate · Unauthorized Access/Disclosure · Oct 10, 202521,265
  17. 17Space Coast VascularFL · Healthcare Provider · Hacking/IT Incident · Oct 6, 202518,819
  18. 18Firetree, LtdPA · Healthcare Provider · Hacking/IT Incident · Oct 17, 202517,979
  19. 19Hale Makua Health ServicesHI · Healthcare Provider · Hacking/IT Incident · Oct 29, 202514,369
  20. 20Partners in Pediatrics, P.C.CO · Healthcare Provider · Hacking/IT Incident · Oct 8, 202513,300
September 2025November 2025All breachesHHS OCR Breach Portal