U.S. dental benefits giant DentaQuest moved from actor-claimed extortion to a researcher-verified mega-leak in early June 2026. Have I Been Pwned loaded 2.6 million unique emails with names, mailing addresses, gender, dates of birth, and phone numbers from healthcare enrollment-style files. BleepingComputer tied the dump to ShinyHunters’ 234 GB trove.
Member action items
- Freeze or monitor credit—dental benefits fraud often precedes medical ID theft.
- Ignore SMS “benefits verification” links citing real plan details.
- Rotate passwords on dental-portal accounts and enable MFA on email recovery.
Canonical record: DentaQuest ShinyHunters 2026 on BreachHistory.
Sources: HIBP, BankInfoSecurity