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UHS of Delaware

Disclosed Mar 29, 20233 years ago40,290 affectedConfirmed

Official notice

UHS of Delaware, the business associate (BA), reported that an employee of its subcontractor was the subject of an email phishing scheme that compromised the protected health information (PHI) for 40,290 individuals. The PHI involved included names, addresses, dates of birth, claims and health insurance information, diagnoses, and other treatment information. The BA notified HHS, affected individuals, the media, and posted substitute notice on its website. In its mitigation efforts, the BA implemented additional administrative, technical, and security safeguards to better protect its sensitive data. All staff were retrained on email security precautions.

What is known

People affected40,290 (as reported to HHS)
DisclosedMar 29, 2023
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Source
HHS OCR breach report (archive, resolved): UHS of Delaware (Business Associate, PA)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalMar 29, 202340,290
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.

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