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American Anesthesiology

Disclosed Jan 8, 20215 years ago1,269,074 affectedConfirmed

Official notice

The covered entity (CE), American Anesthesiology, reported that multiple employees of its business associate (BA) experienced an email phishing attack affecting the protected health information (PHI) of 1,269,074 individuals. The PHI involved included names, dates of birth, Social Security and drivers’ license numbers, diagnoses, lab results, medications prescribed, and financial and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the BA implemented additional administrative and technical safeguards to better protected PHI. All staff were retrained on email security.

What is known

People affected1,269,074 (as reported to HHS)
DisclosedJan 8, 2021
DiscoveredJul 16, 2020
HappenedJun 17, 2020
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: American Anesthesiologyoag.ca.gov · Official notice
Oregon DOJ breach notice: American Anesthesiologyjustice.oregon.gov · Official notice
Indiana Attorney General 2021 data breach report: American Anesthesiologyin.gov · Official notice
HHS OCR breach report (archive, resolved): American Anesthesiology (Healthcare Provider, NY)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
California AGresidents of CAJan 8, 2021
Oregon DOJresidents of ORJan 8, 20211,159,841
Indiana AGresidents of INJan 8, 202117,027
HHS archivetotalJan 8, 20211,269,074

Other breaches at American Anesthesiology

BreachAffected
Disclosed Dec 4, 2013Dec 4, 201312 years agoInsider1,000
History of this record
  • 2026-09-25 · sector: other to health · backfill source
  • 2026-09-25 · attack: unknown to hacking · backfill source
  • 2026-09-25 · data_types: [] to ["names","health"] · backfill source
  • 2026-09-25 · records_basis: organization to hhs · backfill source
  • 2026-09-25 · records: 1159841 to 1269074 · backfill source
  • 2026-09-25 · summary: empty to The covered entity (CE), American Anesthesiology, reported that multiple employees of its business associate (BA) experienced an email phishing attack affecting the protected health information (PHI) of 1,269,074 individuals. The PHI involv · backfill source
  • 2026-09-25 · records_basis: empty to organization · backfill source
  • 2026-09-25 · records: empty to 1159841 · backfill source
  • 2026-09-25 · discovered: empty to 2020-07-16 · 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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