On November 5, 2026, the ransomware tracker Ransomware.live listed Delta Dental of Missouri as a victim of the N0n group. The tracker’s entry described access to the insurer’s customer relationship database and member and subscriber service records. The company has not confirmed the incident in the sources reviewed.
The tracker alleged that the records included email addresses, telephone numbers, full names, Social Security numbers, dates of birth, home addresses, and dental treatment details. It listed 48,528 distinct email addresses and 17,913 telephone number lines, but did not disclose how many individuals were affected. No regulator filing or consumer notification was located in the sources reviewed.
The reported details remain unconfirmed, and the available information does not establish whether additional records or affected individuals will be identified. Notification dates and any further incident details have not been disclosed in the sources reviewed.