DentaQuest Breach: ShinyHunters Publish Data Impacting 2.6M People
DentaQuest Breach: ShinyHunters Publish Data Impacting 2.6M People
Publish Date: 2026-06-07 14:56:00
Source Domain: securityaffairs.com
DentaQuest Breach: ShinyHunters Publish Data Impacting 2.6M People
Pierluigi Paganini
June 07, 2026
ShinyHunters leaked 234 GB of data allegedly stolen from DentaQuest after failed negotiations, potentially impacting 2.6 million people.
The ShinyHunters extortion group has published a 234 GB archive of data allegedly stolen from dental benefits administrator DentaQuest.
The cybercrime gang added the company to its Tor data leak site in May, and the data was released after negotiations reportedly failed. The breach could affect approximately 2.6 million individuals whose information may have been exposed.
The company published a notice confirming it is responding to a cybersecurity incident involving unauthorized access to a limited part of its network. The company quickly moved to contain the attack and says its systems remain operational with minimal disruption.
DentaQuest is working with cybersecurity experts, forensic investigators, and law enforcement to determine the scope of the breach and any data exposure.
“DentaQuest is actively managing a cybersecurity incident involving unauthorized access to a limited portion of our network. Upon discovery of the initial incident, we took immediate action to secure our environment, contain the attack and mitigate the threat.” reads the notice. “Our systems remain fully operational, and we continue to serve our clients with limited disruption.”
The benefits administrator has reported the incident to the authorities, but has not disclosed technical details about the security breach.
According to the data breach notification service HaveIBeenPwned, the leaked data includes 2.6 million email addresses, along with names, phone numbers, addresses, and healthcare-related records, some containing Medicaid IDs.
“In May 2026, the dental benefits administrator DentaQuest was the target of a ShinyHunters “pay or…
