Every public data breach

47 disclosed this week · 26,367 on record

Yale New Haven Health Services

Disclosed Jul 23, 202114,603 affectedConfirmed

Official notice

The covered entity (CE), Yale New Haven Health Services Corporation, reported that its business associate (BA) was the victim of a cyber-attack that compromised the protected health information (PHI) of 14,603 individuals. The PHI involved included names, addresses, phone numbers, email addresses, Social Security numbers, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice on its website. In response to the breach, the BA implemented additional technical safeguards to better protect PHI.

What is known

People affected14,603 (as reported to HHS)
DisclosedJul 23, 2021
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Yale New Haven Health Services

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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