DentaQuest says hackers accessed part of its network, and leaked data reviewed by Have I Been Pwned indicates about 2.6 million accounts were exposed. The company was listed by the ShinyHunters extortion group, which claimed to have stolen more than 234 GB of data and later leaked it publicly; exposed fields reportedly include email addresses, full names, phone numbers, dates of birth, gender, government-issued IDs, and health-insurance information.
Why it matters: This is a major breach affecting customers of one of the largest U.S. dental benefits administrators, and the exposed identity and insurance data can fuel phishing, impersonation, and fraud. Affected people should watch for breach notices, be wary of calls or emails claiming to be from insurers or providers, and monitor accounts and insurance activity.
Ionut Arghire
2026.06.05
99% relevant
This article covers the same DentaQuest/ShinyHunters breach and adds that SecurityWeek reported the leak size at 234 GB, that DentaQuest confirmed unauthorized access to a limited portion of its network, and reiterates the affected data types and approximate 2.6 million account count from Have I Been Pwned.
Bill Toulas
2026.06.04
100% relevant
This article establishes a distinct breach event: DentaQuest confirmed unauthorized network access, and external analysis tied the public leak to 2.6 million exposed records.
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