Skip to content

Maestro Health

Disclosed Apr 6, 20215 years ago18,488 affectedConfirmed

Official notice

The business associate (BA), Maestro Health, reported that several employees were the victims of an email phishing attack affecting the protected health information (PHI) of 18,488 individuals. The PHI involved included names, dates of birth, addresses, and Social Security numbers. The BA notified HHS, affected individuals, and the media. In response to the breach, the BA implemented additional administrative, technical, and security safeguards, revised its policies and procedures, retrained its employees on email security, and provided affected individuals with credit monitoring services. OCR provided technical assistance to the BA regarding the HIPAA Rules.

What is known

People affected18,488 (as reported to HHS)
DisclosedApr 6, 2021
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Source
HHS OCR breach report (archive, resolved): Maestro Health (Business Associate, IL)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalApr 6, 202118,488

Other breaches at Maestro Health

BreachAffected
Disclosed Aug 17, 2018Aug 17, 20188 years ago57
History of this record
  • 2026-09-25 · added · backfill source

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

Everything about Maestro Health

New breaches by email

Wednesdays, only in weeks with newly disclosed breaches, the largest first.

Double opt-in. Unsubscribe any time.