DentaQuest 2026 Data Breach
Healthcare / Dental Benefits Administration / Enterprise / Consumer
DentaQuest 2026 Data Breach: 2.6 Million Dental Members Exposed via ShinyHunters
US dental benefits administrator managing Medicaid and commercial dental plans.
Confirmed · ObscureIQ Intelligence
Breach Risk Index i
89/100
Lower riskHigher risk
High and current: recent, valuable data circulating on the dark web now.
Data Sensitivity i
ElevatedExposed data raises the risk of fraud, targeting, and impersonation. Proactive steps are warranted.
2.6MRecords
2026Year
The Breach Risk Index (BRI) is a proprietary 0–100 score rating how dangerous a breach is right now, based on how recently the data has been circulating on the dark web and how valuable it is to attackers.
Crucial data exposed
Gov IDGovernment ID
AddressHome address
Breach Summary
In May 2026 ShinyHunters published data from DentaQuest impacting about 2.6 million members: names, addresses and phone numbers alongside 2.6 million unique email addresses, largely within healthcare enrollment files (X12 transaction sets), some containing Medicaid IDs.
Full threat analysis, exploitation vectors, and principal guidance below.
10 additional sections · verified field analysis · defensive doctrine
Querying breach corpus…
Cross-referencing exposed field types…
Resolving threat-actor attribution…
Compiling principal risk advisory…
2.6M records analyzed
About DentaQuest
DentaQuest is a US dental-benefits administrator (part of Sun Life) managing dental coverage for Medicaid, CHIP and commercial members across many states.
Why They Hold Your Data
A dental-benefits administrator holds member identity and contact data and health-plan enrollment records, including Medicaid IDs and dental coverage details (PHI).
Recent Developments
In May 2026 DentaQuest was hit in the ShinyHunters pay-or-leak campaign, which published hundreds of gigabytes of member data.
Data Points Exposed
5 verified field types
Email Address
Full Name
Government ID Critical
Home address High
Phone Number
Breach Impact
As a HIPAA business associate, the breach carries PHI and Medicaid-program exposure, regulatory notification obligations, and litigation, with impact spanning many member states.
Principal Risk Advisory
What this means for a principal
A healthcare-linked breach: exposure ties a named individual to a provider relationship and, where clinical or insurance data is present, to conditions and treatment. For a high-profile principal this is targeting-grade, not merely identity-theft-grade: the combination lets an adversary locate, impersonate, or pressure the principal with little additional work.
What You Should Do
- Freeze credit at all three bureaus and monitor for new-account and tax-refund fraud.
- Treat the home address as exposed: review mail and package handling and physical-security routines, and brief household staff to verify unusual requests.
- Guard against SIM-swap and vishing: add a carrier port-out PIN and verify any 'support' calls independently.
- Do not use unofficial 'am I affected' lookups; several are themselves harvesting operations.
How ObscureIQ Can Help
- Corpus confirmation: determine whether and where the principal (plus household and staff) appear in this dataset and which specific fields are exposed for them.
- Exposure mapping and footprint neutralization: cross-reference against broker-available data and suppress still-removable elements, prioritizing address and phone, since this record re-seeds broker networks.
- ThreatWatch tuned to this incident's identifiers and misuse pattern (impersonation and targeting patterns, not generic credential monitoring).
S
Threat Actor: ShinyHuntersConfidence: High
Motivation: Financial extortion, data sale
A prolific data theft and extortion group that began as a database theft and resale actor and evolved toward SaaS-focused extortion. Recent activity involves vishing, credential harvesting, SSO compromise, and theft of customer data from cloud and SaaS environments.
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