CENTENE CORPORATION
ent_019de1ce0c959e1fd4a1be37f50b0651
Disclosures
1
State AG · 1 jurisdiction
Multi-filing incidents
—
no multi-filing incident in sample
Max affected reported
950,000
as filed · State AG SC
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- CENTENE CORPORATION
- Normalized
- centene— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- 549300Z7JJ4TQSQGT333
- SEC EDGAR CIK
- 0001071739
- Domain
- centene.com
Disclosure history (1)newest first
Subsidiary disclosures (newest 10)filed by group companies
◈ These filings were made by or about subsidiaries of CENTENE CORPORATION — not by CENTENE CORPORATION itself. Corporate relationships are mapped from GLEIF relationship records and SEC Exhibit 21 filings.
- FLORIDAHHS OCRvia Sunshine Health2026-07-10
Sunshine Health reported to HHS on 2026-07-10 a Hacking/IT Incident affecting 41569 individuals. Breached information located on Laptop, Network Server.
- ILLINOISHHS OCRvia Meridian Health Plan of Illinois2026-06-19
Meridian Health Plan of Illinois reported to HHS on 2026-06-19 a Unauthorized Access/Disclosure affecting 21,027 individuals. Breached information located on Network Server.
- Illinois State AGvia Meridian Health Plan of Illinois2026-06-01
MERIDIAN HEALTH PLAN OF ILLINOIS filed a data-breach notice with the Illinois Attorney General in June 2026 (case 26-06-1265). The register records the breach as discovered on April 28, 2026. Personal information types reported: medical information. 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.
- Washington State AGvia Wellcare of Washington, Inc.2026-02-20
Insightin Health, Inc. disclosed a cyberattack affecting Wellcare Health Insurance Company of Washington, Inc. clients. Unauthorized access occurred Sept 17-23, 2025, via an unknown vulnerability in vendor software. Names were accessed/copied. 843 WA residents affected. Insightin engaged experts, fixed the issue, notified law enforcement, and offered credit monitoring.
- Nebraska State AGvia WellCare Health Plans, Inc.2025-09-10
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.
- GLOBALLeak Sitevia MAGELLAN FINANCIAL GROUP LTD2025-08-07
https://www.magellangroup.com.au Founded in 2006 and headquartered in Australia, an active asset manager specializing in global equity and infrastructure strategies. they search the world for high-quality companies that we believe have a sustainable competitive advantage and will compound returns over the...
- Illinois State AGvia Magellan Health2024-09-01
MAGELLAN HEALTH SERVICES, INC filed a data-breach notice with the Illinois Attorney General in September 2024 (case 24-09-009). The register records the breach as discovered on April 8, 2024. 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.
- CALIFORNIAHHS OCRvia Human Affairs International of California2024-02-16
Human Affairs International of California reported to HHS on 2024-02-16 a Unauthorized Access/Disclosure affecting 18347 individuals. Breached information located on Paper/Films. A programming issue resulted in an employee mailing PHI (names, DOB, addresses, diagnoses, claims, financial info) to wrong recipients. CE provided credit monitoring and implemented safeguards.
- ARKANSASHHS OCRvia Arkansas Total Care2023-09-21
Arkansas Total Care, Inc. reported to HHS on 2023-09-21 a Hacking/IT Incident affecting 578 individuals. Breached information located on Network Server. A business associate's software application exposed PHI including names, DOB, addresses, diagnoses, and claims.
- GEORGIAHHS OCRvia Peach State Health Plan2023-09-15
Peach State Health Plan reported to HHS on 2023-09-15 a Hacking/IT Incident affecting 1246 individuals. Breached information located on Network Server. A business associate experienced a cyber-attack exposing PHI including names, addresses, DOB, diagnoses, and medications.