Dentistry.One Breach Incident Score: Analysis & Impact (DEN1766793460)

In this Rankiteo incident briefing, we review the Dentistry.One breach identified under incident ID DEN1766793460.

The analysis begins with a detailed overview of Dentistry.One's information like the linkedin page: https://www.linkedin.com/company/dentistry-one, the number of followers: 814, the industry type: Hospitals and Health Care and the number of employees: 21 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 760 and after the incident was 695 with a difference of -65 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Dentistry.One and their customers.

On 26 December 2025, Dentistry.One, LLC disclosed Data Breach issues under the banner "Data Breach at Dentistry.One, LLC".

A recent data breach at Dentistry.One, LLC, a virtual-first dental telehealth provider, has put sensitive personal information at risk for an undisclosed number of individuals.

The disruption is felt across the environment, and exposing Personally identifiable information (PII) including names, addresses, government-issued IDs, and Social Security numbers.

In response, moved swiftly to contain the threat with measures like Unauthorized party identified and data confirmed deleted; termination certificate signed, and began remediation that includes Enhanced technical security measures, revised internal policies, additional safeguards, and system monitoring, and stakeholders are being briefed through Notification sent to affected consumers and Massachusetts Attorney General’s office.

The case underscores how Completed (internal review), with advisories going out to stakeholders covering Affected individuals notified and offered complimentary identity monitoring services through Kroll for 24 months.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating unauthorized access to Dentistry.One’s systems and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating virtual dental telehealth provider (potential public-facing app). Under the Credential Access tactic, the analysis identified Unsecured Credentials (T1552) with moderate confidence (60%), supported by evidence indicating unauthorized access implies possible credential compromise. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating pII exposed (SSNs, names, addresses, government IDs). Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with lower confidence (30%), supported by evidence indicating no ransomware evidence, but data exposure implies impact and Data Manipulation: Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating unauthorized access to systems (potential manipulation). Under the Defense Evasion tactic, the analysis identified Indicator Removal (T1070) with moderate to high confidence (70%), supported by evidence indicating attacker data verified as deleted; termination certificate signed. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.