Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Baltimore Medical System

Disclosed Dec 12, 2025197,201 affectedConfirmed

Official notice

What is known

People affected197,201 (as reported by the organization)
DisclosedDec 12, 2025
HappenedJul 2, 2025
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report: Baltimore Medical System (Healthcare Provider, MA)
Official noticeago.vermont.gov
Vermont Attorney General: 2026-04-02 Baltimore Medical System, Inc. - Date Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2026 data breach report: Baltimore Medical System

Notices filed

TotalDec 12, 2025
HHS OCR501 people
Residents of VTApr 2
Vermont AGCount not stated
Residents of INSep 29
Indiana AG23 people
History of this record
records_basis2026-10-02
hhs to organizationby dailySource
records2026-10-02
501 to 197201by dailySource
occurred2026-10-02
empty to 2025-07-02by dailySource
source2026-09-25
empty to https://ago.vermont.gov/document/2026-04-02-baltimore-medical-system-inc-date-breach-notice-consumersby backfillSource
Added2026-09-25
First recordedby backfillSource

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

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