Social EngineeringHealthcareFinancial ServicesHealthcarePhishingStolen CredentialsCustomer Data InvolvedMulti-Stage ChainHealth (basic)Identity (basic)Government IDPHIHighContained

United HealthCare Services, Inc.

bd_60a179415bac1f28 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 1, 2024

Filed

Jun 27, 2025

To disclose

34 weeks

Affected

1,258state residents only

Linked

4 filings

Confidence

67%

Full breach record for United HealthCare Services, Inc. →29 incidents on file

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.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d34 weeks discovery → filing

Incident timeline

Nov 5, 2024

Begins

Jun 27, 2025

Filed

vs. sector median

+21 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_aae18161065de5d02025-06-27Verified
Indiana State AGbd_b8bae3b0557279822025-06-27Verified
Nebraska State AGbd_e1744c68ceda21af2025-06-27Verified

Name: MedicareCompareUSA
norm: medicarecompareusa

Name: United HealthCare Services, Inc.
norm: united healthcare
Domain: uhc.com
Industry: HealthcarellmFinancial Servicesllm

Discovered: Nov 1, 2024
Breach occurred: Nov 5, 2024 – Nov 21, 2024
Materiality determined: —
Notification sent: Jun 27, 2025
Affected individuals: 1,258state-resident count only
Data types: Identity (basic)Government IDHealth (basic)
Data elements: NameSocial Security numberDriver's licence 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 regulatorsnotifying the three major credit reporting agenciesnotifying the U.S. Department of Health and Human Services
Initial access: phishing_link

During the incident: 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
Implemented additional safeguards and training to its employees
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
Notifying the three major credit reporting agencies
Notifying the U.S. Department of Health and Human Services
Changes made: Implemented additional safeguards and training to its employees
Implemented additional cybersecurity measures
Reviewed existing security policies
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 34 weeks(238 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 · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGJun 27 · first

Indiana State AGJun 27 · first

Nebraska State AGJun 27 · first

Washington State AGJun 27 · first · this page

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/BreachA33736.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 27, 2025
Raw hash: 0880e81a829d09d4d129f0b863541be035e0be9b3afbd7299c243cc3343f0dd6

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMedicareCompareUSA

Victim entityUnited HealthCare Services, Inc.

Incidentdiscovered Nov 1, 2024

Stated responseTook steps to secure its environment

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com