- State
- MA
- Covered entity type
- Healthcare Provider
- Individuals affected
- 640
- Business associate present
- No
- Type of breach
- Hacking/IT Incident
- Location of breached information
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The covered entity (CE), Steward Medical Group, reported that an employee was the victim of an email phishing attack that affected the protected health information (PHI) of 640 individuals. The PHI involved included names, dates of birth, Social Security numbers, and claims and treatment information. The CE notified HHS, affected individuals, and the media. In its mitigation efforts, the CE implemented additional administrative and technical safeguards and retrained its staff on email security.
Change history
- 9/23/2026Added to OCR's archive list
Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal. Records are reproduced as published; entity names and figures are OCR's.