Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Yale New Haven Health

Disclosed Nov 8, 201927,007 affectedConfirmed

Official notice

What is known

People affected27,007 (as reported by the organization)
DisclosedNov 8, 2019
DiscoveredJul 17, 2019
HappenedJul 3, 2019
AttackNot stated
Data exposedNamesSocial Security numbersPayment cardsFinancial
SectorHealthcare · US
StatusConfirmed

Sources

Official noticein.gov
Indiana Attorney General 2019 data breach report: Yale New Haven Health
Official noticemaine.gov
Maine Attorney General breach notice archive: Yale New Haven Health

Notices filed

Residents of INNov 8, 2019
Indiana AG8 people
Residents of MENov 8, 2019
Maine AG16 people

Other breaches at Yale New Haven Health

Cyberattack on Yale New Haven Health exposes 5.5M patientsHacking exposed names, dates of birth, addresses, emails, phone numbers, Social Security numbers and health records.Hacking5.6M affectedHealthcareUSUnverifiedApr 11, 2025
History of this record
data_types2026-09-25
[] to ["names","ssn","payment-card","financial"]by backfillSource
discovered2026-09-25
empty to 2019-07-17by backfillSource
Added2026-09-25
First recordedby backfillSource

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

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