Northwestern Health Sciences University
Disclosed May 21, 20197 years ago3,499 affectedConfirmed
The covered entity (CE), Northwestern Health Sciences University (NHSU), reported that several employees were the victims of an email phishing attack. This breach affected 1,198 individuals and the protected health information (PHI) involved included names, Social Security numbers, drivers’ license numbers, passport information, diagnostic information, treatment information, medications prescribed, and health insurance information. The CE notified HHS, affected individuals, the media, and offered complimentary credit monitoring and identity theft services to all affected individuals. In addition, the CE implemented additional administrative, technical, and security safeguards and retrained its staff on the proper methods of identifying fraudulent email communications. OCR obtained assurances that the CE implemented the corrective actions noted.
What is known
| People affected | 3,499 (as reported by the organization) |
|---|---|
| Disclosed | May 21, 2019 |
| Happened | Oct 16, 2018 |
| Attack | Hacking |
| Data exposed | Names, Social Security numbers, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Indiana Attorney General 2019 data breach report: Northwestern Health Sciences Universityin.gov · Official notice | Official notice |
| Maine Attorney General breach notice archive: Northwestern Health Sciences Universitymaine.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Northwestern Health Sciences University (Healthcare Provider, MN)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Indiana AGresidents of IN | May 21, 2019 | 6 |
| HHS archivetotal | May 21, 2019 | 1,198 |
| Maine AGresidents of ME | May 24, 2019 | 2 |
History of this record
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: ["names","ssn"] to ["names","ssn","health"] · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Northwestern Health Sciences University (NHSU), reported that several employees were the victims of an email phishing attack. This breach affected 1,198 individuals and the protected health information (PHI) involve · backfill source
- 2026-09-25 · data_types: [] to ["names","ssn"] · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Indiana AG), confirmed by Indiana AG. Record counts are as reported. Not legal advice.