DentaQuest breach exposes health data of 15 million people
May, 2026
DentaQuest says a May network breach affected 15 million people, exposing Social Security numbers and dental or vision health information. It is described as the largest US health data breach reported so far in 2026.
Why it matters
Records that combine identity numbers and health details are hard to replace and are useful for fraud for years.
What defenders can take from it
- If you receive a breach notice, freeze your credit and take the offered monitoring.
- Organizations: keep identity numbers only as long as you need them, and encrypt them at rest.