Social EngineeringHealthcareHealthcarePhishingStolen CredentialsBusiness Associate (HIPAA)Customer Data InvolvedData PublishedPHIIdentity (basic)Government IDHealth (basic)MediumContained

DentaQuest, LLC

bd_b048476c6c1e1883 · schema v1 · pii pii-v2

Severity

Medium

Discovered

May 20, 2026

Filed

Aug 12, 2026

To disclose

12 weeks

Affected

26state residents only

Linked

19 filings

Confidence

67%

Full breach record for DentaQuest, LLC →5 incidents on file

DentaQuest, a dental and vision benefits provider for Humana Medicaid and D-SNP plans, experienced a data breach affecting 26 Idaho residents. A threat actor used social engineering to compromise an employee account, gaining unauthorized access to DentaQuest's IT environment from May 17-20, 2026. The accessed data included names, addresses, member IDs, Medicaid/Medicare numbers, dental/vision health information, and in some cases, Social Security Numbers. DentaQuest contained the incident, engaged CrowdStrike for investigation, and is offering 24 months of identity monitoring via Kroll. Humana notified the Idaho Attorney General as part of its Business Associate agreement.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d12 weeks discovery → filing

Incident timeline

undetected · 3 days

discovery → filing · 12 weeks / 84 days

May 17, 2026

Begins

May 20, 2026

Discovered

Aug 12, 2026

Filed

vs. sector median

1 wks faster

This filing is one of 19 about the same incident.View merged incident

A leak claim by shinyhunters about this victim predates this filing by 76 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Idaho State AGbd_0510572adf88325a2026-08-03 · +9dVerified
Massachusetts State AGbd_1e8db8bfc75827d62026-07-30 · +13dVerified
Idaho State AGbd_571c7231b18fedc32026-07-30 · +13dVerified
New Hampshire State AGbd_109ea4be4ea997032026-07-29 · +14dVerified

Show 6 more filings ↓up to 27d gap

Texas State AGbd_4a5196edfadecf3b2026-07-17 · +26dVerified
Nebraska State AGbd_4d1ee0875da1a2ff2026-07-17 · +26dVerified
Delaware State AGbd_f990f6918f923e332026-07-17 · +26dVerified
Rhode Island State AGbd_1133bd1e67e874152026-07-16 · +27dVerified
Washington State AGbd_36645eac8bc688a62026-07-16 · +27dVerified
California State AGbd_3bc7925dd29517192026-07-16 · +27dVerified

Showing first 10 of 18 linked disclosures.

Name: HUMANA INC.
norm: humana
Domain: humana.com

Name: DentaQuest, LLC
norm: dentaquest
Industry: Healthcarellm

Discovered: May 20, 2026
Breach occurred: May 17, 2026 – May 20, 2026
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 26state-resident count only
Data types: PHIIdentity (basic)Government IDHealth (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566 PhishingT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified Idaho Attorney GeneralNotified applicable consumer reporting agenciesNotified any other required agency
Third party: via DentaQuest, LLC
Initial access: phishing_link

During the incident: Engaged outside legal counsel
Retained CrowdStrike Services to conduct an independent investigation
Revoked all SSO sessions associated with the Impacted Account
Deactivated the Impacted Account and rotated associated credentials
Disabled application-specific access associated with the Impacted Account
Implemented containment measures on May 20, 2026
Notified law enforcement
Sent notification letters to affected residents
Offered free credit monitoring and identity theft protection by Kroll
Changes made: Engaged cyber security experts
Provided more employee training
Added new security measures
Increased monitoring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(84 days from discovery to filing)
Compliance flags: Leak >30d
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 · 11 filings · 9 states

View merged incident ↗

Rhode Island State AGJul 16 · first

Washington State AGJul 16 · first

California State AGJul 16 · first

Texas State AG+1d

Nebraska State AG+1d

Delaware State AG+1d

New Hampshire State AG+13d

Massachusetts State AG+14d

Idaho State AG+14d

Idaho State AG+18d

Idaho State AG+27d · this page

Pattern: first filing Jul 16 (RI), last Aug 12 (ID) — a 27-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 18 — the full spread may be wider.

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://www.ag.idaho.gov/content/uploads/2026/08/2026-08-12-Humana.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 12, 2026
Raw hash: d07171874ad6ad39e6d41d6282d1a06a2ca0c848dae025f7d87b93db86b2b8cb

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityHUMANA INC.

Victim entityDentaQuest, LLC

Incidentdiscovered May 20, 2026

Stated responseEngaged outside legal counsel

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancewww.ag.idaho.gov