A massive data breach at DentaQuest, the largest Medicaid and Children's Health Insurance Program dental benefits administrator in the US, has potentially exposed the personal and dental health information of over 23 million individuals. The incident occurred in May 2026, when hackers gained access to the company's network. As a result, customers' sensitive information may have been compromised. DentaQuest, which operates in all 50 US states, is currently notifying affected individuals. The breach is particularly concerning given the sensitive nature of the data involved, including dental health records. This incident highlights the need for robust cybersecurity measures in the healthcare industry, particularly among large administrators like DentaQuest. The breach's impact is significant, so practitioners and individuals must be vigilant about monitoring their personal and health information for potential misuse1.