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Regulator-posted notice

Breach notice filed by Cancer Treatment Centers of America (CTCA) at Western Regional Medical Center (November 2018)

Organization named: Cancer Treatment Centers of America (CTCA) at Western Regional Medical Center 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. 26, 2018.

Organization as reported
Cancer Treatment Centers of America (CTCA) at Western Regional Medical Center, AZ
Entity type as reported
Healthcare Provider
Category as reported
Hacking/IT Incident
Location of information as reported
Email
Submission date
Nov. 26, 2018
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 13618, row:4757)
Archived copy
Held in the private archive (provenance)

The covered entity (CE), Cancer Treatment Centers of America, reported that an employee was the victim of an email phishing attack affecting 41,948 individuals. The protected health information (PHI) involved included names, addresses, Social Security numbers, diagnoses/conditions, and treatment information. CTCA notified HHS, affected individuals, and the media. In its mitigation efforts, the CE implemented additional administrative and technical safeguards and retrained its staff. OCR obtained assurances that the CE implemented the corrective actions noted.

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

Figures, per source

  • 41,948 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date Nov. 26, 2018, 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 13618)
  • Approved by a reviewer

Organizations linked by a reviewer

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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