HHS OCR report ยท 2024
Mass General Brigham Health Plan data breach
OCR report facts
- Covered entity
- Mass General Brigham Health Plan
- Entity type
- Health Plan
- State
- Massachusetts
- Individuals affected
- 3,659
- Submission date
- Jun 28, 2024
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Other
- Business associate present
- No
- Status
- Archive (closed)
OCR description
Mass General Brigham Health Plan, the covered entity (CE), reported that an employee impermissibly shared her system credentials with an unauthorized individual in an effort to outsource her job duties. This breach affected the protected health information (PHI) of 3,659 individuals. The PHI involved included names, addresses, medical record numbers, dates of birth, email addresses, phone numbers, Social Security numbers, health insurance and claims information, and diagnoses. The CE notified...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Mass General Brigham Health Plan data breach?
The report to HHS OCR lists 3,659 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jun 28, 2024.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Other.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Mass General Brigham Health Plan legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Mass General Brigham Health Plan.