Regulator-posted notice

Breach notice filed by Mercy Health System Corporation (July 2019)

Organization named: Mercy Health System Corporation Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Hacking/IT Incident

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS Office for Civil Rights breach portal with a submission date of July 2, 2019.

Organization as reported: Mercy Health System Corporation, WI
Entity type as reported: Healthcare Provider
Category as reported: Hacking/IT Incident
Location of information as reported: Email
Submission date: July 2, 2019
Observed by BreachRecords: 2026-10-18 16:15 UTC (revision 13344, row:4483)
Archived copy: Held in the private archive (provenance)

Mercy Health System Corporation (MHSC), the covered entity (CE), reported that an employee of its business associate (BA) was the victim of an email phishing scheme that affected 5,946 individuals. The protected health information (PHI) involved included names, addresses, Social Security numbers, and treatment information. The CE, in conjunction with the BA, notified HHS, affected individuals, the media, and offered complimentary identity theft monitoring services. MHSC also provided substitute notice on its website.
The source's own words, from the revision above.

Figures, per source

5,946 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date July 2, 2019, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

2019-07-02Submission date (HHS Office for Civil Rights breach portal)
2026-10-18Observed by BreachRecords (revision 13344)
2026-10-19Approved by a reviewer

Organizations linked by a reviewer

Mercy Health System Corporation Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
text/csv, 5,530,996 bytes, retrieved from HHS Office for Civil Rights breach portal, 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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