Every public data breach

47 disclosed this week · 26,367 on record

UMass Memorial Health Care

Disclosed Oct 15, 2021209,048 affectedConfirmed

Official notice

The covered entity (CE), UMass Memorial Health, reported that several employees were the subjects of an email phishing scheme that affected the protected health information (PHI) of 4,270 individuals. The PHI involved included names, Social Security numbers, dates of birth, addresses, drivers’ license numbers, diagnoses, lab results, and health insurance information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative and technical safeguards. Staff were retrained on email security.

What is known

People affected209,048 (as reported to HHS)
DisclosedOct 15, 2021
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
records2026-09-25
4270 to 209048by backfillSource
disclosed2026-09-25
2022-02-28 to 2021-10-15by backfillSource
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 UMass Memorial Health Care