City of Middletown
ent_c6b8f9bfdcce88de31cf1e13
Disclosures
4
State AG · HHS OCR · 4 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
123,791
nationwide · State AG IN
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- City of Middletown
- Normalized
- city of middletown— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (4)newest first
- New Hampshire State AGas victim2026-06-08
City of Middletown, Ohio, notified the New Hampshire Attorney General's Office of an unauthorized network access incident affecting approximately 3 residents. The breach occurred between July 29, 2025, and August 17, 2025, and was discovered on May 18, 2026. Compromised data included full names, Social Security numbers, and driver's license/state ID numbers. The City engaged external cybersecurity professionals, notified affected residents, and provided complimentary credit monitoring services.
- OHIOHHS OCRas victim2026-06-03
City of Middletown reported to HHS on 2026-06-03 a Hacking/IT Incident affecting 20608 individuals. Breached information located on Network Server.
- Indiana State AGas victim2026-06-03
City of Middletown reported a data breach to the Indiana Attorney General. The breach occurred on 2025-07-29 and was reported on 2026-06-03. 140 Indiana residents were affected. 123,791 individuals affected in total.
- Massachusetts State AGas victim2016-10-21
City of Middletown reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2016-10-21. 38 Massachusetts residents were affected. The report records the breach type as electronic.