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Regulator-posted notice

Breach notice filed by The Medical College of Wisconsin, Inc. (November 2017)

Organization named: Medical College of Wisconsin 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 Nov. 17, 2017.

Organization as reported
The Medical College of Wisconsin, Inc., WI
Entity type as reported
Healthcare Provider
Category as reported
Hacking/IT Incident
Location of information as reported
Email
Submission date
Nov. 17, 2017
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 14000, row:5139)
Archived copy
Held in the private archive (provenance)

The Medical College of Wisconsin, the covered entity (CE), reported that several employees were the victims of an email phishing attack. The email accounts contained the protected health information (PHI) of 9,500 individuals. The PHI involved included names, dates of birth, addresses, Social Security numbers, medical record numbers, health insurance information, financial information, and treatment information. The CE notified HHS, affected individuals, and the media. As a result of the breach, the CE immediately implemented administrative and technical safeguards to better protect its data and retrained its staff. OCR obtained assurances that the CE implemented the aforementioned corrective actions.

The source's own words, from the revision above.

Figures, per source

  • 9,500 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date Nov. 17, 2017, 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.

  • Submission date (HHS Office for Civil Rights breach portal)
  • Observed by BreachRecords (revision 14000)
  • Approved by a reviewer

Organizations linked by a reviewer

  • Medical College of Wisconsin 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.

Request a correction

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