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44 disclosed this week · 26,355 on record

Mojave Radiation Oncology Medical Group

Disclosed Jun 27, 20254,403 affectedConfirmed

Official notice

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.

What is known

People affected4,403 (as reported to HHS)
DisclosedJun 27, 2025
HappenedDec 13, 2024
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
empty to hhsby backfillSource
records2026-09-25
empty to 4403by backfillSource
disclosed2026-09-25
2025-07-15 to 2025-06-27by backfillSource
summary2026-09-25
empty to 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 individuaby backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

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