California Cancer Associates for Research and Excellence - Fresno

Disclosed Jun 27, 20257,670 affectedConfirmed

California Cancer Associates for Research and Excellence, the covered entity (CE), reported that several employees of its business associate (BA) were the targets of an email phishing scheme that compromised the protected health information (PHI) of 7,670 individuals. The PHI involved demographic, clinical, and financial information. The CE notified HHS, and confirmed that its BA notified the affected individuals, the media, and CE posted substitute notice on its website.

What is known

People affected	7,670 (as reported to HHS)
Disclosed	Jun 27, 2025
Happened	Dec 13, 2024
Attack	Hacking
Data exposed	NamesHealth
Sector	Healthcare · US
Status	Confirmed

Sources

Official noticeoag.ca.gov

California Attorney General breach notice: California Cancer Associates for Research and Excellence - Fresno

Official noticeocrportal.hhs.gov

HHS OCR breach report (archive, resolved): California Cancer Associates for Research and Excellence - Fresno (Healthcare Provider, CA)

Notices filed

Residents of CAJun 27, 2025

California AGCount not stated

TotalJun 27, 2025

HHS archive7,670 people

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 7670by backfillSource

summary2026-09-25

empty to California Cancer Associates for Research and Excellence, the covered entity (CE), reported that several employees of its business associate (BA) were the targets of an email phishing scheme that compromised the protected health informationby 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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