Breachesby GlyphMedical College of Wisconsin
Disclosed Oct 11, 20205,655 affectedConfirmed
The covered entity (CE), The Medical College of Wisconsin, reported that its business associate (BA) experienced a ransomware attack affecting the electronic protected health information (ePHI) of approximately 5,655 individuals. The ePHI involved included names, addresses, dates of birth, and treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice.
What is known
| People affected | 5,655 (as reported to HHS) |
|---|---|
| Disclosed | Oct 11, 2020 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at Medical College of Wisconsin
Hacking breachHacking exposed names and health records. Reported to the HHS archive.241K affectedHealthcareUSNov 14, 2023Breach, details not statedExposed names and Social Security numbers. Reported to the Maine AG.995 affectedEducationUSAug 14, 2019Hacking breachHacking exposed names and health records. Reported to the HHS archive.9,500 affectedHealthcareUSSep 2, 2016
History of this record
First recordedby backfillSource
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.