Maestro Health
Disclosed Apr 6, 202118,488 affectedConfirmed
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 affected | 18,488 (as reported to HHS) |
|---|---|
| Disclosed | Apr 6, 2021 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at Maestro Health
History of this record
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.