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44 disclosed this week · 26,355 on record

Central Maine Healthcare

Disclosed Jul 31, 2025145,381 affectedConfirmed

Official notice

Central Maine Healthcare intrusion exposes data of 145,381 people

Central Maine Healthcare said hackers were in its systems from March 19 until it discovered the intrusion on June 1, 2025; it notified people on a rolling basis, published a statement on December 29, and its review, finished November 6, put the total at 145,381 patients and employees.

What is known

People affected145,381 (as reported by the organization)
DisclosedJul 31, 2025
DiscoveredJun 1, 2025
AttackHacking
Data exposedNamesDates of birthHealthInsuranceSocial Security numbers
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Central Maine Healthcare

History of this record
source_type2026-09-25
press to officialby backfillSource
source_url2026-09-25
https://www.bleepingcomputer.com/news/security/central-maine-healthcare-breach-exposed-data-of-over-145-000-people/ to https://ocrportal.hhs.gov/ocr/breach/breach_report.jsfby backfillSource
status2026-09-25
disclosed to confirmedby backfillSource
verified_by2026-09-25
empty to hhs-ocrby backfillSource
verified2026-09-25
0 to 1by backfillSource
disclosed2026-09-25
2025-12-29 to 2025-07-31by backfillSource
Added2026-09-25
First recordedby seedSource

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

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