MedicareCompareUSA
ent_e11ae8d5e5f9f33c245c4d75
Disclosures
10
State AG · HHS OCR · 5 jurisdictions
Multi-filing incidents
2
incidents joining 2+ filings here
Max affected reported
5,782
nationwide · HHS OCR WA
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- MedicareCompareUSA
- Normalized
- medicarecompareusa— 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 (10)newest first
- Nebraska State AGas reporting2025-09-10
MedicareCompareUSA (MCUSA) reported a phishing incident affecting WellCare/Centene policyholders. Unauthorized access occurred between Nov 5-21, 2024, exposing names, DOB, Medicare numbers, and financial account data. One Nebraska resident was notified on Sep 10, 2025. MCUSA provided credit monitoring via Transunion/Cyberscout and notified HHS and credit bureaus.
- Washington State AGas reporting2025-06-27
MedicareCompareUSA notified the Washington AG of a phishing incident affecting United Healthcare policyholders. Unauthorized access to email accounts occurred Nov 5-21, 2024. Data exposed: names, SSNs, Medicare numbers, DOBs. 1,258 WA residents notified on June 27, 2025. Credit monitoring offered.
- Nebraska State AGas reporting2025-06-27
MedicareCompareUSA reported a phishing incident affecting United Healthcare data. Unauthorized access occurred Nov 5-21, 2024, exposing names, SSNs, and health policy numbers. One Nebraska resident was notified on June 27, 2025. MCUSA provided credit monitoring and notified HHS.
- Nebraska State AGas victim2025-05-12
MedicareCompareUSA notified Nebraska AG of unauthorized access to email accounts between Nov 5-21, 2024. 10 Nebraska residents affected. Data included names, SSNs, financial account numbers, and driver's licenses. Notification sent May 12, 2025. Credit monitoring offered.
- Indiana State AGas victim2025-05-12
MedicareCompareUSA reported a data breach to the Indiana Attorney General. The breach occurred on 2024-11-05 and was reported on 2025-05-12. 7 Indiana residents were affected. 2,072 individuals affected in total.
- Massachusetts State AGas victim2025-05-12
MedicareCompareUSA reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-05-12. 5 Massachusetts residents were affected.
- Washington State AGas victim2025-05-12
MedicareCompareUSA notified Washington AG of a phishing incident affecting 1,768 residents. Unauthorized access to email accounts occurred Nov 5-21, 2024. Data exposed included names, DOBs, SSNs, financial accounts, driver's licenses, and medical info. Notices sent May 12, 2025. Credit monitoring offered.
- Washington State AGas reporting2025-05-12
MedicareCompareUSA filed a Washington AG notice on behalf of Humana regarding a phishing incident affecting 922 WA residents. Unauthorized access to email accounts occurred Nov 5-21, 2024. Data exposed included names, DOBs, Medicare/Medicaid numbers, and SSNs. Notices sent May 12, 2025. Credit monitoring offered.
- Illinois State AGas victim2025-05-01
MEDICARE COMPARE USA filed a data-breach notice with the Illinois Attorney General in May 2025 (case 25-05-185). The register records the breach as discovered on November 1, 2024. Personal information types reported: drivers license, medical information. Additional entities named: HUMANA. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
- WASHINGTONHHS OCRas victim2025-03-21
MedicareCompareUSA reported to HHS on 2025-03-21 a Hacking/IT Incident affecting 5782 individuals. Breached information located on Email.