Breachesby GlyphNorthShore University HealthSystem
Disclosed Sep 4, 2020348,746 affectedConfirmed
The covered entity (CE), NorthShore University Health System, reported that its business associate (BA) experienced a ransomware attack affecting the electronic protected health information (ePHI) of approximately 345,161individuals. The ePHI involved included names, addresses, dates of birth, Social Security number, financial information, and treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice.
What is known
| People affected | 348,746 (as reported to HHS) |
|---|---|
| Disclosed | Sep 4, 2020 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
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.