Incident Score: Analysis & Impact (MAC1769447270)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of MACT Health Board, Inc.'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 MACT Health Board, Inc. 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 MACT Health Board, Inc. breach identified under incident ID MAC1769447270.
The analysis begins with a detailed overview of MACT Health Board, Inc.'s information like the linkedin page: https://www.linkedin.com/company/mact-health-board-inc., the number of followers: 267, the industry type: Wellness and Fitness Services and the number of employees: 95 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 768 and after the incident was 696 with a difference of -72 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 MACT Health Board, Inc. and their customers.
On 12 November 2025, MACT Health Board Inc. disclosed Data Breach issues under the banner "MACT Health Board Data Breach Exposes Sensitive Patient and Employee Information".
MACT Health Board Inc., a nonprofit tribal healthcare provider, reported a data breach that compromised sensitive personally identifiable information (PII).
The disruption is felt across the environment, affecting IT systems, and exposing Sensitive personally identifiable information (PII), medical records, insurance information, driver’s license numbers.
In response, and stakeholders are being briefed through Affected individuals notified and offered 12 months of free credit monitoring through Experian IdentityWorks.
The case underscores how Completed review of affected files on January 9, 2026, with advisories going out to stakeholders covering Affected individuals notified and offered 12 months of free credit monitoring through Experian IdentityWorks, along with identity theft insurance.
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 (80%), supported by evidence indicating detected unauthorized access to its IT systems between November 12 and November 20, 2025 and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating unauthorized access to its IT systems (no specific vector confirmed). Under the Credential Access tactic, the analysis identified Unsecured Credentials (T1552) with moderate to high confidence (70%), supported by evidence indicating compromised sensitive PII including Social Security numbers and medical records and OS Credential Dumping (T1003) with moderate confidence (60%), supported by evidence indicating exposed data included names, SSNs, driver’s license numbers (implies credential access). Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating medical records (diagnoses, treatment details, insurance information) compromised and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating healthcare provider’s IT systems contained sensitive patient/employee data. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating unauthorized access to IT systems; data breach confirmed (exfiltration implied) and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating no direct evidence, but common in healthcare breaches (low confidence). Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating no evidence of destruction, but breach may have altered data integrity and Data Manipulation: Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating medical records compromised; potential for manipulation (low confidence). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- MACT Health Board, Inc. Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/mact-health-board-inc./incident/MAC1769447270
- MACT Health Board, Inc. CyberSecurity Rating page: https://www.rankiteo.com/company/mact-health-board-inc.
- MACT Health Board, Inc. Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/mac1769447270-mact-health-board-inc-breach-november-2025/
- MACT Health Board, Inc. CyberSecurity Score History: https://www.rankiteo.com/company/mact-health-board-inc./history
- MACT Health Board, Inc. CyberSecurity Incident Source: https://www.claimdepot.com/investigations/mact-health-board-data-breach-2026
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf