The HealthTech Signal

Health Data Breach Tracker/Monthly roundup

Biggest health data breaches: October 2026

In October 2026, 18 health data breaches affecting 500 or more people were reported to the HHS Office for Civil Rights, with a combined 8,539,661 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

18

Individuals affected

8,539,661

Hacking or IT incidents

16

  1. 1iRhythm Technologies, Inc.CA · Healthcare Provider · Hacking/IT Incident · Oct 3, 20268,179,772
  2. 2Denver Health Medical PlanCO · Health Plan · Hacking/IT Incident · Oct 1, 2026238,083
  3. 3Cognitive Health Technologies LLCNY · Business Associate · Hacking/IT Incident · Oct 8, 202649,467
  4. 4Photon HealthNY · Business Associate · Hacking/IT Incident · Oct 9, 202630,625
  5. 5Bright Smile Dental CareIN · Healthcare Provider · Hacking/IT Incident · Oct 1, 20267,601
  6. 6Secure Healthcare Information Management, LLCPA · Healthcare Provider · Hacking/IT Incident · Oct 6, 20266,810
  7. 7Hattiesburg Eye Clinic, P.A.MS · Healthcare Provider · Hacking/IT Incident · Oct 5, 20266,137
  8. 8Bay Area Psychological ConsultantsFL · Healthcare Provider · Hacking/IT Incident · Oct 1, 20265,679
  9. 9Arkansas Urology, P.A.AR · Healthcare Provider · Hacking/IT Incident · Oct 1, 20264,347
  10. 10Anup K. Deol, OD PS d/b/a Eye Care Center of SnohomishWA · Healthcare Provider · Hacking/IT Incident · Oct 8, 20263,059
  11. 11The Speech Clinic, LLCGA · Healthcare Provider · Hacking/IT Incident · Oct 7, 20262,168
  12. 12Innovative Alternatives, IncTX · Healthcare Provider · Hacking/IT Incident · Oct 2, 20261,500
  13. 13Family Physicians, Inc.OH · Healthcare Provider · Hacking/IT Incident · Oct 1, 2026885
  14. 14Nabi Health, Inc.CA · Business Associate · Unauthorized Access/Disclosure · Oct 6, 2026783
  15. 15AllCare Health, Inc.OR · Health Plan · Unauthorized Access/Disclosure · Oct 8, 2026782
  16. 16Gary Gotthelf, MD and AssociatesFL · Healthcare Provider · Hacking/IT Incident · Oct 5, 2026685
  17. 17Franklin/Fulton Mental Health/Intellectual & Developmental Disabilities/Early InterventionPA · Healthcare Provider · Hacking/IT Incident · Oct 5, 2026640
  18. 18Allswell Health Medical Group PACA · Healthcare Provider · Hacking/IT Incident · Oct 9, 2026638
September 2026All breachesHHS OCR Breach Portal