Mountrail County Medical Center
ent_48ea1f9158b13403ab7f6534
Disclosures
2
State AG · 2 jurisdictions
Multi-filing incidents
—
no multi-filing incident in sample
Max affected reported
24,447
nationwide · State AG TX
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Mountrail County Medical Center
- Normalized
- mountrail county medical center— 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 (2)newest first
- Texas State AGas victim2026-10-16
Mountrail County Medical Center based in Stanley, North Dakota, a healthcare – medical provider entity reported a data breach to the Texas Attorney General. The breach was discovered on 2026-06-26 and reported on 2026-10-16. 456 Texas residents were affected. 24,447 individuals affected in total. Types of information involved: Name of individual;Social Security Number Information;Medical Information;Date of Birth. Consumers were notified via U.S. Mail.
- Massachusetts State AGas victim2026-10-01
Aesto, LLC, a healthcare data archiving provider, disclosed a cyber incident affecting Mountrail County Medical Center. Unauthorized access occurred between Dec 2-18, 2025, impacting a limited portion of AWS infrastructure. Protected health information (names, DOB, SSN, driver's license, financial accounts) of some individuals was accessed. Aesto engaged GuidePoint Security for forensic investigation, contained the breach by Dec 18, 2025, and notified affected entities on June 26, 2026.