Social EngineeringHealthcareBusiness Associate (HIPAA)Customer Data InvolvedData ExfiltratedPHIHealth (basic)Identity (basic)Government IDMediumContained

DentaQuest, LLC

bd_571c7231b18fedc3 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 20, 2026

Filed

Jul 30, 2026

To disclose

10 weeks

Affected

26state residents only

Linked

19 filings

Confidence

67%

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

DentaQuest, LLC, a dental and vision benefits provider for Humana Medicaid/D-SNP plans, experienced a security incident impacting 26 Idaho residents. A threat actor gained unauthorized access to DentaQuest's IT environment on May 17, 2026, using compromised credentials obtained via a social engineering attack targeting a single employee. The actor accessed personal and health information (including SSNs) before being contained on May 19, 2026. Humana notified the Idaho AG on July 30, 2026. Affected individuals received notification letters and offers for credit monitoring via Kroll.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d10 weeks discovery → filing

Incident timeline

undetected · 3 days

discovery → filing · 10 weeks / 71 days

May 17, 2026

Begins

May 20, 2026

Discovered

Jul 30, 2026

Filed

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 63 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Massachusetts State AGbd_1e8db8bfc75827d62026-07-30Verified
New Hampshire State AGbd_109ea4be4ea997032026-07-29 · +1dVerified
Idaho State AGbd_0510572adf88325a2026-08-03 · +4dVerified
Idaho State AGbd_b048476c6c1e18832026-08-12 · +13dVerified

Show 6 more filings ↓up to 14d gap

Texas State AGbd_4a5196edfadecf3b2026-07-17 · +13dVerified
Nebraska State AGbd_4d1ee0875da1a2ff2026-07-17 · +13dVerified
Delaware State AGbd_f990f6918f923e332026-07-17 · +13dVerified
Rhode Island State AGbd_1133bd1e67e874152026-07-16 · +14dVerified
Washington State AGbd_36645eac8bc688a62026-07-16 · +14dVerified
California State AGbd_3bc7925dd29517192026-07-16 · +14dVerified

Showing first 10 of 18 linked disclosures.

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

Name: DentaQuest, LLC
norm: dentaquest

Discovered: May 20, 2026
Breach occurred: May 17, 2026 – May 19, 2026
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 26state-resident count only
Data types: Identity (basic)Government IDPHIHealth (basic)
Data elements: Social Security numberMedical information
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Idaho Attorney General's Office
Initial access: phishing_link

During the incident: Engaged 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
Sent notification letters to affected residents
Offered free credit monitoring and identity theft protection by Kroll
Changes made: Implemented containment measures on May 20, 2026
Continued monitoring of the DentaQuest environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(71 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 · this page

Idaho State AG+18d

Idaho State AG+27d

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/2026/08/2026-07-30-DentaQuest-LLC.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 30, 2026
Raw hash: 4aca83b7aa37aa49c7b997f037180da150880b92a3f71d4b79c1541ce4cdb516

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityHUMANA INC.

Victim entityDentaQuest, LLC

Incidentdiscovered May 20, 2026

Stated responseEngaged CrowdStrike Services to conduct an independent investigation

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancewww.ag.idaho.gov