HHS OCR report ยท 2024
MHNU Corporation d/b/a Medical Home Network data breach
OCR report facts
- Covered entity
- MHNU Corporation d/b/a Medical Home Network
- Entity type
- Business Associate
- State
- Illinois
- Individuals affected
- 681
- Submission date
- Apr 16, 2024
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The business associate (BA), MHNU Corporation dba Medical Home Network, reported that several employees were the subjects of an email phishing attack that affected the protected health information (PHI) of 681 individuals. The PHI involved included names, dates of birth, addresses, lab results, diagnoses, and medications. The BA notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the BA implemented additional administrative, technical, and...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the MHNU Corporation d/b/a Medical Home Network data breach?
The report to HHS OCR lists 681 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Apr 16, 2024.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Email.
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 MHNU Corporation d/b/a Medical Home Network 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 MHNU Corporation d/b/a Medical Home Network.