Mainline Health Systems Inc
ent_ed9904fd822aab3ade66d5e4
Disclosures
4
State AG · HHS OCR · 4 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
101,104
nationwide · HHS OCR AR
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Mainline Health Systems Inc
- Normalized
- mainline health— 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
- ⭐Texas State AGas victim2025-06-30
Mainline Health Systems Inc based in Monticello, Arkansas, a healthcare – medical provider entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-05-21 and reported on 2025-06-30. 428 Texas residents were affected. 101,104 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Driver’s License number;Government-issued ID number (e.g. passport, state ID card);Financial Information (e.g. account number, credit or debit card number);Medical Information;Health Insurance Information;Date of Birth. Consumers were notified via U.S. Mail.
- ⛰️New Hampshire State AGas victim2025-06-24
Mainline Health Systems Inc reported an unauthorized access incident occurring on or about April 10, 2024, discovered on May 21, 2025. The breach impacted approximately one New Hampshire resident, exposing PII, PHI, SSNs, financial account data, and medical records. Mainline notified law enforcement, engaged cybersecurity experts, and is offering credit monitoring services. The investigation is ongoing.
- ARHHS OCRas victim2025-06-23
Mainline Health Systems Inc reported to HHS on 2025-06-23 a Hacking/IT Incident affecting 101,104 individuals. Breached information located on Network Server.
- 🦞Maine State AGas victim2025-06-23
Mainline Health Systems Inc. reported a data breach affecting 101,104 individuals, including one resident of Maine. The breach, described as an external system breach (hacking), occurred on April 10, 2024, and was discovered on May 21, 2025. Affected individuals were notified on June 20, 2025, and offered 12 months of credit monitoring and identity theft protection services.