City of Middletown

Disclosed Jun 3, 20263 months ago123,791 affectedConfirmed

Official notice

What is known

People affected	123,791 (as reported by the organization)
Disclosed	Jun 3, 2026
Happened	Jul 29, 2025
Attack	Hacking
Data exposed	Names, Health
Sector	Healthcare · US
Status	Confirmed

Sources

Source	Kind
HHS OCR breach report: City of Middletown (Healthcare Provider, OH)ocrportal.hhs.gov · Official notice	Official notice
Indiana Attorney General 2026 data breach report: City of Middletownin.gov · Official notice	Official notice

Notices filed

Where	Filed	People
HHS OCRtotal	Jun 3	20,608
Indiana AGresidents of IN	Jun 3	140

Other breaches at City of Middletown

Breach	Disclosed	Attack	Sector	Status	Affected
Disclosed Oct 21, 2016Oct 21, 20169 years ago	Oct 21, 20169 years ago	Not stated	Healthcare	Confirmed	Unknown

History of this record

2026-09-25 · records_basis: hhs to organization · backfill source
2026-09-25 · records: 20608 to 123791 · backfill source
2026-09-25 · occurred: empty to 2025-07-29 · backfill source
2026-09-25 · added · backfill source

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

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