HHS OCR report · 2015
The McLean Hospital Corporation data breach
OCR report facts
- Covered entity
- The McLean Hospital Corporation
- Entity type
- Healthcare Provider
- State
- Massachusetts
- Individuals affected
- 12,673
- Submission date
- Jul 28, 2015
- Type of breach
- Loss
- Location of breached information
- Other Portable Electronic Device
- Business associate present
- No
- Status
- Archive (closed)
OCR description
An employee of the Brain Tissue Research Center within McLean Hospital Corporation’s Department of Neuroscience (the Brain Bank) failed to return four backup tapes in her possession after she was terminated affecting approximately 12,673 individuals. The types of electronic protected health information (ePHI) involved included names, addresses, dates of birth, dates of death, intake diagnoses, family medical histories, and social security numbers. Following this incident, the covered entity ...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the The McLean Hospital Corporation data breach?
The report to HHS OCR lists 12,673 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 28, 2015.
What type of breach was it?
The OCR portal lists the type of breach as Loss, with the breached information located in: Other Portable Electronic Device.
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 The McLean Hospital Corporation 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 The McLean Hospital Corporation.