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HHS OCR report ยท 2021

Walworth County Department of Health and Human Services data breach

Walworth County Department of Health and Human Services, a healthcare provider in Wisconsin, reported a breach affecting 907 individuals to HHS OCR on Mar 12, 2021.

OCR report facts

Covered entity
Walworth County Department of Health and Human Services
Entity type
Healthcare Provider
State
Wisconsin
Individuals affected
907
Submission date
Mar 12, 2021
Type of breach
Unauthorized Access/Disclosure
Location of breached information
Email
Business associate present
No
Status
Archive (closed)

OCR description

The covered entity (CE), Walworth County Department of Health and Human Services, reported that several employees inadvertently sent the electronic protected health information (ePHI) of 907 individuals to unauthorized parties. The ePHI involved included email addresses and vaccination information. The CE notified HHS, affected individuals, and the media. In its mitigation efforts, the CE retrained employees on the proper methods of protecting ePHI. OCR obtained assurances that the CE imp...

Text as published on the HHS OCR breach portal.

Frequently asked questions

How many people were affected by the Walworth County Department of Health and Human Services data breach?

The report to HHS OCR lists 907 individuals affected.

When was it reported to HHS?

It was submitted to HHS OCR on Mar 12, 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 Walworth County Department of Health and Human Services 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 Walworth County Department of Health and Human Services.