Every public data breach

44 disclosed this week · 26,355 on record

Oswego Health

Disclosed Sep 30, 202013,619 affectedConfirmed

Official notice

The covered entity (CE), Oswego Health, reported that an employee was the victim of an email phishing attack that affected the electronic protected health information (ePHI) of 13,619 individuals. The ePHI involved included names, dates of birth, addresses, medical diagnoses, medications prescribed, and Social Security numbers. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. The CE also provided complimentary credit monitoring services. Following the breach, the CE strengthened its administrative, technical, and security safeguards and retrained its staff on email security.

What is known

People affected13,619 (as reported to HHS)
DisclosedSep 30, 2020
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

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 Oswego Health