HHS OCR report ยท 2021
Mankato Clinic data breach
OCR report facts
- Covered entity
- Mankato Clinic
- Entity type
- Healthcare Provider
- State
- Minnesota
- Individuals affected
- 535
- Submission date
- Sep 16, 2021
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Mankato Clinic, reported that an employee accidentally sent an email containing the electronic protected health information (ePHI) of 535 individuals to the wrong recipient. The ePHI involved included names, addresses, dates of birth, financial information, and diagnoses/conditions. The CE notified HHS, affected individuals, the media, and provided substitute notice. In its mitigation efforts, the CE sanctioned the responsible employee and retrained staff on the im...
Text as published on the HHS OCR breach portal.
Other reports by Mankato Clinic
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Mankato Clinic | MN | Healthcare Provider | 3,159 | Dec 28, 2010 | Theft | Archive (closed) |
Frequently asked questions
How many people were affected by the Mankato Clinic data breach?
The report to HHS OCR lists 535 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 16, 2021.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, 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 Mankato Clinic 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 Mankato Clinic.