Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Mid Michigan Medical Billing Service

Disclosed Jan 5, 202628,185 affectedConfirmed

Official notice

What is known

People affected28,185 (as reported to HHS)
DisclosedJan 5, 2026
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report: Mid Michigan Medical Billing Service (Business Associate, MI)

Notices filed

TotalJan 5
HHS OCR28,185 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 Mid Michigan Medical Billing Service