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Analyze » DentaQuest » DEN1780676951

Incident Score: Analysis & Impact (DEN1780676951)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-143
Company Score Before Incident767 / 1000
Company Score After Incident624 / 1000
INCIDENT NUMBERDEN1780676951
Type of Cyber IncidentRansomware
ATTACK VECTORNA
DATA EXPOSEDPersonal and health data of...
INCIDENT DATE05/01/2025
STATUSOngoing as of 2026-06-01

Key Highlights From The Incident Analysis

  • Timeline of DentaQuest's Ransomware and lateral movement inside company's environment.
  • Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
  • How Rankiteo’s incident engine converts technical details into a normalized incident score.
  • How this cyber incident impacts DentaQuest Rankiteo cyber scoring and cyber rating.
  • Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.

Full Incident Analysis Transcript

In this Rankiteo incident briefing, we review the DentaQuest breach identified under incident ID DEN1780676951.

The analysis begins with a detailed overview of DentaQuest's information like the linkedin page: https://www.linkedin.com/company/dentaquest, the number of followers: 21323, the industry type: Hospitals and Health Care and the number of employees: 1410 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 767 and after the incident was 624 with a difference of -143 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 DentaQuest and their customers.

On 06 January 2025, DentaQuest disclosed Data Breach issues under the banner "DentaQuest Data Breach Exposes Personal and Health Data of 2.6 Million Individuals".

DentaQuest, a U.S.-based dental benefits administrator under Sun Life U.S., disclosed a data breach affecting approximately 2.6 million people.

The disruption is felt across the environment, affecting A portion of DentaQuest’s network, and exposing Personal and health data of 2.6 million individuals, with nearly 2.6 million records at risk.

In response, and stakeholders are being briefed through Pledged to provide updates and transparency to affected individuals.

The case underscores how Ongoing as of 2026-06-01, with advisories going out to stakeholders covering Pledged to provide updates and transparency to affected individuals.

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.

MITRE ATT&CK® Correlation Analysis

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 Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating unauthorized access to a portion of DentaQuest’s network and Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating shinyHunters attributed to the breach (known for credential abuse). Under the Credential Access tactic, the analysis identified Credentials from Password Stores (T1555) with moderate to high confidence (70%), supported by evidence indicating shinyHunters (threat actor) linked to credential theft in past incidents and Brute Force (T1110) with moderate confidence (50%), supported by evidence indicating no specific details, but common in ShinyHunters attacks. Under the Discovery tactic, the analysis identified Account Discovery (T1087) with moderate confidence (60%), supported by evidence indicating high-value data (health insurance, PII) targeted and File and Directory Discovery (T1083) with moderate confidence (60%), supported by evidence indicating unauthorized access to network portion implies discovery phase. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating names, DOB, email, IDs, health insurance data compromised and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating dental benefits administrator (likely stores sensitive data). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating 2.6 million records exposed; ShinyHunters known for data exfil and Exfiltration Over Web Service (T1567) with moderate confidence (60%), supported by evidence indicating no specifics, but common in ransomware exfiltration. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with lower confidence (40%), supported by evidence indicating incident labeled as ransomware; encryption likely and Defacement (T1491) with lower confidence (30%), supported by evidence indicating no evidence, but ransomware groups often deface. Under the Defense Evasion tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating shinyHunters likely used stolen credentials to evade detection and Hide Artifacts (T1564) with moderate confidence (50%), supported by evidence indicating ongoing investigation suggests evasion tactics. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Exploit Public-Facing Application (50%)
Valid Accounts (60%)
Credential Access
Credentials from Password Stores (70%)
Brute Force (50%)
Discovery
Account Discovery (60%)
File and Directory Discovery (60%)
Collection
Data from Local System (80%)
Data from Information Repositories (70%)
Exfiltration
Exfiltration Over C2 Channel (80%)
Exfiltration Over Web Service (60%)
Impact
Data Encrypted for Impact (40%)
Defacement (30%)
Defense Evasion
Valid Accounts (70%)
Hide Artifacts (50%)

Sources & References