Partners HealthCare System
Disclosed May 1, 20153,321 affectedConfirmed
Fifty employees providing unauthorized access to their email accounts as a result of a phishing email sent to 392 employees of Partners HealthCare, the covered entity (CE). Those email accounts contained the protected health information (PHI) of 3,321 individuals and included names, addresses, dates of birth, social security numbers, diagnoses, medications, and other treatment information. The CE provided breach notification to HHS, affected individuals, and the media. Following the breach, the CE strengthened password requirements, implemented two-factor authentication, and conducted additional training and awareness sessions regarding phishing campaigns. OCR obtained assurances that the CE implemented the corrective actions listed above.
What is known
| People affected | 3,321 (as reported to HHS) |
|---|---|
| Disclosed | May 1, 2015 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at Partners HealthCare System
History of this record
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.