HHS OCR report ยท 2024
Mass General Brigham Incorporated data breach
OCR report facts
- Covered entity
- Mass General Brigham Incorporated
- Entity type
- Healthcare Provider
- State
- Massachusetts
- Individuals affected
- 655
- Submission date
- Jun 28, 2024
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Electronic Medical Record, Other
- Business associate present
- No
- Status
- Archive (closed)
OCR description
Mass General Brigham, the covered entity (CE), reported that several employees impermissibly shared their system credentials with an unauthorized individual in an effort to outsource their job duties. This breach affected the protected health information (PHI) of 655 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, diagnoses, and other treatment inf...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Mass General Brigham Incorporated data breach?
The report to HHS OCR lists 655 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: Electronic Medical Record, 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 Incorporated 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 Incorporated.