Mansfield Family Dentistry Data Breach

Mansfield Family Dentistry, a United States-based healthcare provider, has been identified as a victim by the Everest ransomware group. The incident was reported on August 5, 2026, and detected via SOCRadar’s Dark Web Monitoring service. While operating within the healthcare sector, specifically as a small dental practice, it represents a smaller-scale target compared to the typical profiles often observed for ransomware attacks. The practice’s position within the healthcare vertical, which has been a persistent target for ransomware operators for years, makes it susceptible to such threats. In the 60 days preceding this listing, the Everest ransomware group claimed 18 other victims. The group primarily targets the technology, professional services, and energy and utilities sectors, with a significant concentration of victims in the United States, India, and the United Arab Emirates. Recent targets that share similarities with Mansfield Family Dentistry’s profile include US-based organizations like Keysight, Conway Analytics, Oasis Legal Group, and Formulatrix. Given that healthcare is a less frequent target for Everest compared to technology, and considering the size of Mansfield Family Dentistry, this incident can be viewed as an outlier within the group’s usual targeting patterns.

SOCRadar’s analysis of infostealer-harvested credentials did not yield any records associated with mansfielddentistry.com within the queried data sample. It is important to note that a null result does not definitively confirm the absence of a compromise. The scope of the query was limited to a paginated segment of data and may not encompass the entirety of available information. Furthermore, credentials associated with alternative or subsidiary corporate domains, as well as those linked to personal email aliases, would not be captured by this specific search against the primary corporate domain. Small practices, like Mansfield Family Dentistry, are particularly susceptible to credential harvesting via personal accounts, as staff often use these for authentication to various clinical and administrative systems. The methods employed by ransomware groups like Everest often involve the exploitation of infostealer-harvested credentials. Threat actors or initial access brokers typically acquire recent credential logs from underground marketplaces. These credentials are then validated and used to gain unauthorized access to platforms such as Microsoft 365, VPN services, or remote-access portals, paving the way for ransomware deployment. The lack of concrete evidence from this particular query does not preclude such a scenario. It is possible that compromised credentials have appeared in data feeds not included in this analysis, have already been used and subsequently rotated, or were harvested under personal email addresses. Therefore, continuous monitoring and proactive checks of credential hygiene are recommended, rather than interpreting a negative query result as an indication of a secure posture.

This report is intended for threat intelligence and security awareness purposes. SOCRadar does not host, redistribute or buy stolen data. All breach information reported here is collected from publicly accessible threat actor and ransomware portals. This content is intended to equip CTI teams with context around recent attacks. While we strive for accuracy, listings on ransomware leak and extortion sites cannot always be independently verified and may not reflect confirmed breaches. If you believe any data in this report is incorrect, please contact us.