Every public data breach

53 disclosed this week · 26,385 on record

Mankato Clinic

Disclosed Sep 16, 2021535 affectedConfirmed

Official notice

The covered entity (CE), Mankato Clinic, reported that an employee accidentally sent an email containing the electronic protected health information (ePHI) of 535 individuals to the wrong recipient. The ePHI involved included names, addresses, dates of birth, financial information, and diagnoses/conditions. The CE notified HHS, affected individuals, the media, and provided substitute notice. In its mitigation efforts, the CE sanctioned the responsible employee and retrained staff on the importance of safeguarding ePHI.

What is known

People affected535 (as reported to HHS)
DisclosedSep 16, 2021
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Mankato Clinic

History of this record
Added2026-09-25
First recordedby backfillSource

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

Everything about Mankato Clinic