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Regulator-posted notice

Breach notice filed by Mojave Radiation Oncology Medical Group (June 2025)

Organization named: Mojave Radiation Oncology Medical Group 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 June 27, 2025.

Organization as reported
Mojave Radiation Oncology Medical Group, CA
Entity type as reported
Healthcare Provider
Category as reported
Hacking/IT Incident
Location of information as reported
Email
Submission date
June 27, 2025
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 9251, row:390)
Archived copy
Held in the private archive (provenance)

The covered entity (CE), Mojave Radiation Oncology Medical Group, reported that an employee of its business associate (BA) was the target of an email phishing scheme that compromised the protected health information (PHI) of 4,403 individuals. The PHI involved included clinical, demographic, and financial information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services to the affected individuals and the CE and BA implemented additional administrative, technical, and security safeguards, and retrained workforce members to better protect its PHI.

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

Figures, per source

  • 4,403 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date June 27, 2025, 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 9251)
  • 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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