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Analyze » MILLCREEK OUTCOMES GROUP LLC » MIL1765346561

Incident Score: Analysis & Impact (MIL1765346561)

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

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-64
Company Score Before Incident762 / 1000
Company Score After Incident698 / 1000
Company LinkView MILLCREEK OUTCOMES GROUP LLC Profile
INCIDENT NUMBERMIL1765346561
Type of Cyber IncidentBreach
ATTACK VECTORUnauthorized Access
DATA EXPOSEDSensitive personal identifiable information and...
INCIDENT DATE08/12/2025
STATUSCompleted

Key Highlights From The Incident Analysis

  • Timeline of MILLCREEK OUTCOMES GROUP LLC's Breach 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 MILLCREEK OUTCOMES GROUP LLC 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 MILLCREEK OUTCOMES GROUP LLC breach identified under incident ID MIL1765346561.

The analysis begins with a detailed overview of MILLCREEK OUTCOMES GROUP LLC's information like the linkedin page: https://www.linkedin.com/company/millcreek-outcomes-group-llc, the number of followers: 25, the industry type: Hospitals and Health Care and the number of employees: 2 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 762 and after the incident was 698 with a difference of -64 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 MILLCREEK OUTCOMES GROUP LLC and their customers.

On 21 November 2025, Millcreek disclosed Data Breach issues under the banner "Millcreek Data Breach".

Millcreek experienced a data breach in which sensitive personal identifiable information and protected health information may have been compromised due to unauthorized access to its network.

The disruption is felt across the environment, affecting Network systems, and exposing Sensitive personal identifiable information and protected health information.

In response, and stakeholders are being briefed through Posted notice on website and mailed breach notification letters.

The case underscores how Completed, and recommending next steps like Providing affected individuals with complimentary credit monitoring services, with advisories going out to stakeholders covering Breach notification letters mailed to impacted 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 Valid Accounts (T1078) with moderate to high confidence (70%), with evidence including unauthorized access to its network, and accessed or acquired data between February 17 and February 25, 2025 and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating unauthorized access to its network (implied public-facing systems). Under the Credential Access tactic, the analysis identified Brute Force (T1110) with moderate confidence (60%), supported by evidence indicating unauthorized third party accessed or acquired data (implied credential compromise) and Unsecured Credentials (T1552) with moderate confidence (60%), supported by evidence indicating unauthorized access to network (implied weak or exposed credentials). Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating exposed information includes names, SSNs, medical records, and treatment data. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating unauthorized third party accessed or acquired data (implied exfiltration) and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating data breach involving unauthorized access (implied external transfer). Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (40%), supported by evidence indicating data breach with high sensitivity of data (potential tampering) and Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating unauthorized access to medical records and treatment data. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Sources & References