Exposed data archive

Health insurance information data breaches

Public breach reports where health insurance information were listed among exposed data types.

Breaches

Critical

Known affected

2,553,599

Latest report

6/4/2026

Tracked reports

table filter

Critical21d ago

DentaQuest

DentaQuest, a dental benefits administrator, had data on approximately 2.6 million individuals publicly leaked by the ShinyHunters group following an extortion campaign in May 2026.

Dates of birthEmail addressesGenders+5 more

2.6M