[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fBhxeg8yLz6Laso1ySXyDnEXK2RjM4koNKTSLek9VmeE":3},{"article":4,"iocs":49},{"id":5,"title":6,"slug":7,"summary":8,"ai_summary":9,"brief":10,"full_text":11,"url":12,"image_url":13,"published_at":14,"ingested_at":15,"relevance_score":16,"entities":17,"category_id":26,"category":27,"article_tags":31},"56f5d6a7-5717-43dd-af10-bba185ef4591","Hackers Leak DentaQuest Information Impacting 2.6 Million","hackers-leak-dentaquest-information-impacting-2-6-million-ccf11b","The ShinyHunters extortion group leaked roughly 234 GB of data allegedly stolen from the dental benefits administrator. The post Hackers Leak DentaQuest Information Impacting 2.6 Million appeared first on SecurityWeek.","The ShinyHunters extortion group has published over 230 gigabytes of data allegedly stolen from dental benefits administrator DentaQuest, impacting approximately 2.6 million accounts. The leaked dataset includes names, addresses, email addresses, phone numbers, dates of birth, government-issued IDs, and health insurance information. DentaQuest confirmed the cyberattack and stated it is working with external cybersecurity experts to determine the incident scope, though the company has not disclosed attack details or attribution.","ShinyHunters leaks 234 GB of DentaQuest data affecting 2.6 million people.","The ShinyHunters extortion group has published over 230 gigabytes of data allegedly stolen from dental benefits administrator DentaQuest. The threat actor listed DentaQuest on its Tor-based leak site last month, claiming negotiations with the company failed, and leaking a 234 GB archive containing allegedly stolen data. DentaQuest data breach According to data breach notification website HaveIBeenPwned, which added the information to its database, the leak impacts roughly 2.6 million accounts. The dataset includes names, addresses, email addresses, phone numbers, dates of birth, government-issued IDs, and health insurance information. This week, DentaQuest confirmed falling victim to a cyberattack, saying it was working with external cybersecurity experts to determine the scope of the incident and what data might have been compromised. “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,” the company said. The benefits administrator said it has notified the relevant authorities of the attack, but did not share details on how the incident occurred or who was behind it.Advertisement. Scroll to continue reading. SecurityWeek has emailed DentaQuest for additional information on the attack and will update this article if the company responds. A Sun Life subsidiary, DentaQuest is one of the largest administrators of dental benefits in the US, serving 35 million people in 50 states. Related: Nightclub Giant RCI Says Data Breach Affects 40,000 Individuals Related: IMA Diligence Services Data Breach Impacts 525,000 People Related: Charter Communications Data Breach Could Impact Nearly 5 Million Related: California Sues 23andMe, Alleging It Failed to Protect User Data in 2023 Breach Written By Ionut Arghire Ionut Arghire is an international correspondent for SecurityWeek. Daily Briefing Newsletter Subscribe to the SecurityWeek Email Briefing for the latest cybersecurity threats, trends, and expert insights. 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(Nadir Izrael) Flipboard Reddit Whatsapp Whatsapp Email","https:\u002F\u002Fwww.securityweek.com\u002Fhackers-leak-dentaquest-information-impacting-2-6-million\u002F","https:\u002F\u002Fwww.securityweek.com\u002Fwp-content\u002Fuploads\u002F2025\u002F07\u002Fdata-breach-healthcare-medical.jpg","2026-06-05T11:33:27+00:00","2026-06-05T12:00:11.628961+00:00",8,[18,21,24],{"name":19,"type":20},"ShinyHunters","threat_actor",{"name":22,"type":23},"DentaQuest","vendor",{"name":25,"type":23},"Sun Life","2e06f76c-d5b9-4f54-9eef-4d3447b10730",{"id":26,"icon":28,"name":29,"slug":30},null,"Breaches","breaches",[32,34,39,44],{"category":33},{"id":26,"icon":28,"name":29,"slug":30},{"category":35},{"id":36,"icon":28,"name":37,"slug":38},"614132b8-5837-4952-b8b5-c6c9a32a1d85","Privacy","privacy",{"category":40},{"id":41,"icon":28,"name":42,"slug":43},"7d8b5ab8-ea0b-4ced-ae97-ec251b86993a","Ransomware","ransomware",{"category":45},{"id":46,"icon":28,"name":47,"slug":48},"e7b231c8-5f79-4465-8d38-1ef13aea5a14","Threat Intelligence","threat-intelligence",[]]