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44 disclosed this week · 26,355 on record

COSE Healthcloud Solutions

Disclosed Mar 31, 20252,606 affectedConfirmed

Official notice

The business associate (BA), COSE Healthcloud Solutions, reported that an employee was the target of an email phishing scheme that affected the protected heath information (PHI) of 2,606 individuals. The PHI involved included dates of birth, medical record numbers, health insurance information and medical treatment information. The BA notified HHS, affected covered entities, and affected individuals. In response to the breach, the BA conducted employee training and implemented additional administrative, technical, and security safeguards.

What is known

People affected2,606 (as reported to HHS)
DisclosedMar 31, 2025
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

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

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