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University of Michigan/Michigan Medicine

Disclosed Jun 25, 20188 years ago5,466 affectedConfirmed

Official notice

The covered entity (CE), University of Michigan-Michigan Medicine (Michigan Medicine), reported that an employee was the victim of an email phishing scheme affecting the protected health information (PHI) of 5,466 individuals. The PHI involved included names, dates of birth, addresses, Social Security numbers, claims information, diagnoses/conditions, lab results, medications prescribed, and treatment information. Michigan Medicine notified HHS, affected individuals, and the media. The CE also implemented additional administrative, technical, and security safeguards to better protect its PHI. Employees were retrained on the proper methods of identifying fraudulent email communications. OCR obtained assurances that Michigan Medicine implemented the corrective actions noted.

What is known

People affected5,466 (as reported to HHS)
DisclosedJun 25, 2018
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS archivetotalJun 25, 2018871
HHS archivetotalSep 28, 20183,624
HHS archivetotalAug 16, 20195,466

Other breaches at University of Michigan/Michigan Medicine

BreachAffected
Disclosed Jul 19, 2024Jul 19, 20242 years agoInsider58K
Disclosed Mar 3, 2022Mar 3, 20224 years agoHacking34K
Disclosed Oct 16, 2020Oct 16, 20205 years agoInsider1,062
History of this record
  • 2026-09-25 · disclosed: 2018-09-28 to 2018-06-25 · backfill source
  • 2026-09-25 · disclosed: 2019-08-16 to 2018-09-28 · backfill source
  • 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.

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