Social EngineeringHealthcareFinancial ServicesHealthcarePhishingCustomer Data InvolvedData ExfiltratedIdentity (basic)Government IDFinancial accountPHIHealth (basic)MediumContained

WellCare Health Plans, Inc.

bd_3ec1f1d0918711a7 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Nov 1, 2024

Filed

Sep 10, 2025

To disclose

—

Affected

1state residents only

Confidence

66%

Full breach record for WellCare Health Plans, Inc. →7 incidents on file

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.

J jump to incidentP pin to compareR raw source

Incident timeline

Nov 5, 2024

Begins

Sep 10, 2025

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: MedicareCompareUSA
norm: medicarecompareusa

Name: WellCare Health Plans, Inc.
norm: wellcare health plans
Industry: HealthcarellmFinancial Servicesllm

Discovered: Nov 1, 2024
Breach occurred: Nov 5, 2024 – Nov 21, 2024
Materiality determined: —
Notification sent: Sep 10, 2025
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial accountPHIHealth (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Regulator citations: Notifying the U.S. Department of Health and Human ServicesProvided written notice to the three major credit reporting agencies
Initial access: phishing_link

During the incident: Moved quickly to investigate and respond to the incident
Assessed the security of MCUSA systems
Identified potentially affected individuals
Implemented additional safeguards and training to its employees
Provided access to credit monitoring services for one (1) year, through Transunion
Provided impacted individuals with guidance on how to better protect against identity theft and fraud
Provided written notice of this incident to relevant state and federal regulators
Provided written notice to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Notifying the U.S. Department of Health and Human Services
Notifying prominent media pursuant to the Health Insurance Portability and Accountability Act (HIPAA)
Changes made: Implemented additional cybersecurity measures
Reviewed existing security policies to further protect against similar events moving forward
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://nebraska.gov/ago/data-breach/documents/931f190e-bfcd-42e1-bc19-f3f4f0cb8c7a.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 10, 2025
Raw hash: ffbab8fba80785278de14c06b24d22e8fa4c815e4dddcb5e1d82ff63ab48a637

Reporting entityMedicareCompareUSA

Victim entityWellCare Health Plans, Inc.

Incidentdiscovered Nov 1, 2024

Stated responseMoved quickly to investigate and respond to the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov