Delta Dental of Missouri Data Breach: N0n Ransomware Claim (Nov 2026)
Summary
In the latest cybersecurity news, Delta Dental of Missouri — an organization based in US — has fallen victim to a ransomware attack conducted by the group N0n. This data breach, discovered on 2026-11-05T04:52:28.695264+00:00, underscores the increasing need for proactive cybersecurity defenses as we continue through 2026.
Incident Report
| Attribute | Information |
|---|---|
| Target Organization | Delta Dental of Missouri |
| Threat Group | N0n |
| Summary | dental insurance · United States | The customer relationship database of a dental benefits insurer: 48,528 distinct email addresses and 17,913 telephone number lines recovered by direct read; Member and subscriber service records with full names, social security numbers, dates of birth, home addresses and dental treatment details; Employer group client records with contacts, addresses and phones, and the insurance broker channel that serves them | [NOT PAID — EXPOSED] |
| Date of Breach | 2026-11-05T04:52:16.160841+00:00 |
| Discovery Date | 2026-11-05T04:52:28.695264+00:00 |
| Region | US |
| Business Sector | Healthcare |
How to reduce your ransomware risk
Most ransomware intrusions start with a stolen password or a phishing email. A few proactive steps sharply cut your exposure:
- continuous breach monitoring — close the gap attackers exploit.
- realistic phishing tests — close the gap attackers exploit.
Want to know if you’re already exposed? Run a free scan with the HookPhish data breach checker.
Disclaimer
HookPhish does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.
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