Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Crystal Lake Clinic

Disclosed Apr 9, 202137,331 affectedConfirmed

Official notice

What is known

People affected37,331 (as reported to HHS)
DisclosedApr 9, 2021
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report (archive, resolved): Crystal Lake Clinic (Healthcare Provider, MI)

Notices filed

TotalApr 9, 2021
HHS archive37,331 people
History of this record
Added2026-09-25
First recordedby backfillSource

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

Everything about Crystal Lake Clinic