HackingHealthcareFinancial ServicesHealthcarePhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountHealth (basic)PHIHighContained

MedicareCompareUSA

bd_4ad1162fc1d212e3 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 1, 2024

Filed

May 12, 2025

To disclose

27 weeks

Affected

1,768state residents only

Linked

5 filings

Confidence

69%

Full breach record for MedicareCompareUSA →2 incidents on file

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.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d27 weeks discovery → filing

Incident timeline

Nov 5, 2024

Begins

May 12, 2025

Filed

vs. sector median

+15 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Nebraska State AGbd_0fd083e2a44cf1022025-05-12Verified
Indiana State AGbd_2fc94a37464c11822025-05-12Verified
Massachusetts State AGbd_46c19824df0887a82025-05-12Verified
Illinois State AGbd_825255333fccfd4a2025-05-01 · +11dVerified

Name: MedicareCompareUSA
norm: medicarecompareusa

Name: MedicareCompareUSA
norm: medicarecompareusa
Industry: HealthcarellmFinancial Servicesllm

Discovered: Nov 1, 2024
Breach occurred: Nov 5, 2024 – Nov 21, 2024
Materiality determined: —
Notification sent: May 12, 2025
Affected individuals: 1,768state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoing
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Providing written notice of this incident to relevant state and federal regulators
Initial access: phishing_link

During the incident: Immediately took steps to secure its environment
Launched an investigation to determine the nature and scope of the activity
Began an extensive review of the accounts
Providing access to credit monitoring services for one (1) year, through Transunion
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this incident to relevant state and federal regulators
Providing written notice to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Implementing additional safeguards and training to its employees
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.

Time to disclose: 27 weeks(192 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Illinois State AGMay 1 · first

Nebraska State AG+11d

Indiana State AG+11d

Massachusetts State AG+11d

Washington State AG+11d · this page

Pattern: first filing May 1 (IL), last May 12 (WA) — a 11-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA33299.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 12, 2025
Raw hash: 5f93b13de0fa54dc06950754be9a6825b8e7f0ef66071f45feb3525388d9e648

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityMedicareCompareUSA

Victim entityMedicareCompareUSA

Incidentdiscovered Nov 1, 2024

Stated responseImmediately took steps to secure its environment

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com