McLaren Health Care
Disclosed Jul 16, 202164,600 affectedConfirmed
The covered entity (CE), McLaren Health Care Corporation, reported that its business associate experienced a ransomware attack that affected the electronic protected health information (ePHI) of 64,600 individuals. The ePHI involved included names, addresses, dates of birth, drivers’ license numbers, Social Security numbers, diagnoses, clinical information, and other treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach, the BA strengthened its administrative and technical safeguards to better protect ePHI.
What is known
| People affected | 64,600 (as reported to HHS) |
|---|---|
| Disclosed | Jul 16, 2021 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at McLaren Health Care
History of this record
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.