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Einstein Healthcare Network

Disclosed Oct 9, 20205 years ago353,616 affectedConfirmed

Official notice

The covered entity (CE), Einstein Healthcare Network, reported that an employee was the victim of an email phishing attack that affected the electronic protected health information (ePHI) of 353,616 individuals. The ePHI involved included names, dates of birth, addresses, Social Security numbers, health insurance information, and clinical information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach, the CE strengthened its technical and security safeguards and retrained its staff on email security.

What is known

People affected353,616 (as reported to HHS)
DisclosedOct 9, 2020
DiscoveredAug 10, 2020
HappenedAug 5, 2020
AttackPhishing
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS archivetotalOct 9, 2020353,616
California AGresidents of CAJan 25, 2021
Washington AGresidents of WAJan 25, 20211,197

Other breaches at Einstein Healthcare Network

BreachAffected
Disclosed Apr 1, 2016Apr 1, 201610 years agoInsider2,939
History of this record
  • 2026-09-25 · data_types: [] to ["names","health"] · backfill source
  • 2026-09-25 · records_basis: empty to hhs · backfill source
  • 2026-09-25 · records: empty to 353616 · backfill source
  • 2026-09-25 · disclosed: 2021-01-25 to 2020-10-09 · backfill source
  • 2026-09-25 · summary: empty to The covered entity (CE), Einstein Healthcare Network, reported that an employee was the victim of an email phishing attack that affected the electronic protected health information (ePHI) of 353,616 individuals. The ePHI involved included n · backfill source
  • 2026-09-25 · attack: unknown to phishing · backfill source
  • 2026-09-25 · discovered: empty to 2020-08-10 · backfill source
  • 2026-09-25 · added · backfill source

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

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