All Breaches
September 12, 2025 Verified Sensitive Record Healthcare

MedStar Health 2025 Data Breach

The MedStar Health 2025 data breach involved an unauthorized party accessing healthcare systems containing patient information between September 12 and September 16, 2025.

64.3 Thousand
Affected People
10
Data Types
Medium
Severity
Yes
Verification

Exposed Data Types

10
Patient names
Dates of birth
Social security numbers
Driver’s license numbers
Diagnoses
Medications
Test results
Medical images
Health-insurance information
Treatment information

Additional Information

Added DateJuly 27, 2026
Breach DateSeptember 12, 2025
Domainmedstarhealth.org
SourceMedStar Health official notice, HHS/OCR report, and source-linked incident reporting
Last Content UpdateJuly 27, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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Company Information

Company NameMedStar Health, Inc.
SectorHealthcare
CountryUnited States
Websitemedstarhealth.org

Risk Level

Medium

The reported impact exceeds 10 thousand and falls within the medium severity band.

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