Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Arizona Health Care Cost Containment System- State Medicaid Agency

Disclosed Oct 3, 20253,177 affectedConfirmed

Official notice

What is known

People affected3,177 (as reported to HHS)
DisclosedOct 3, 2025
AttackInsider
Data exposedNamesHealth
SectorInsurance · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report: Arizona Health Care Cost Containment System- State Medicaid Agency (Health Plan, AZ)

Notices filed

TotalOct 3, 2025
HHS OCR3,177 people
History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (HHS OCR), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

Everything about Arizona Health Care Cost Containment System- State Medicaid Agency