Every public data breach

44 disclosed this week · 26,355 on record

Health Quest Systems

Disclosed May 31, 2019372,043 affectedConfirmed

Official notice

The covered entity (CE), Health Quest Systems, Inc., reported that several employees were the victims of an email phishing scheme that affected the electronic protected health information (ePHI) of 372,043 individuals. The ePHI involved included names, Social Security numbers, drivers’ license numbers, financial information, health insurance information lab results, medications prescribed, and other treatment information. The CE notified HHS, affected individuals, and the media. In its mitigation efforts, the CE implemented additional administrative, technical, and security safeguards to better protect its ePHI. OCR obtained assurances that the CE implemented the corrective action noted.

What is known

People affected372,043 (as reported to HHS)
DisclosedMay 31, 2019
DiscoveredOct 25, 2019
HappenedJul 11, 2018
AttackHacking
Data exposedNamesSocial Security numbersGovernment IDsPayment cardsFinancialHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
["names","ssn","government-id","payment-card","financial"] to ["names","ssn","government-id","payment-card","financial","health"]by backfillSource
records_basis2026-09-25
organization to hhsby backfillSource
records2026-09-25
61895 to 372043by backfillSource
disclosed2026-09-25
2020-01-10 to 2019-05-31by backfillSource
summary2026-09-25
empty to The covered entity (CE), Health Quest Systems, Inc., reported that several employees were the victims of an email phishing scheme that affected the electronic protected health information (ePHI) of 372,043 individuals. The ePHI involved incby backfillSource
data_types2026-09-25
[] to ["names","ssn","government-id","payment-card","financial"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 61895by backfillSource
discovered2026-09-25
empty to 2019-10-25by 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.

Everything about Health Quest Systems