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Data breach

DentaQuest hack leaks personal data of more than 15 million people

First reported · Last reported · 15 related reports

A cyber breach at DentaQuest in May 2026 led to the leak of personal and health information. Initially, a leak of information from about 2.6 million accounts was reported, and ShinyHunters claimed to have stolen 234 GB. The potential scope of impact was later put at more than 23 million people, and in August the damage was reported as affecting more than 15 million. DentaQuest began notifying victims, and related class action lawsuits were filed.

Key facts

Affected organisation
DentaQuest
Incident type
Data breach
Occurred / detected
Not confirmed
Scale of damage
Personal and health information of more than 15 million people
Cause / method
Hacking and data theft linked to ShinyHunters
Location
United States

If your data was exposed

Exposed dataHealth & medical data

  1. Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.

Timeline

  1. A leak of sensitive information from about 2.6 million accounts became known.
  2. ShinyHunters claimed to have stolen 234 GB of DentaQuest data.
  3. Class action lawsuits were filed over the data breach caused by the ShinyHunters attack.
  4. DentaQuest began notifying 15 million people over the May cyber incident.
  5. The potential scope of impact was put at more than 23 million people.
  6. The DentaQuest data breach was reported as affecting more than 15 million people.

15 related reports

The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.