Minnesota Department of Human Services Breach Incident Score: Analysis & Impact (FEIMIN1768948386)

In this Rankiteo incident briefing, we review the Minnesota Department of Human Services breach identified under incident ID FEIMIN1768948386.

The analysis begins with a detailed overview of Minnesota Department of Human Services's information like the linkedin page: https://www.linkedin.com/company/minnesota-department-of-human-services, the number of followers: 34170, the industry type: Government Administration and the number of employees: 1876 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 558 and after the incident was 374 with a difference of -184 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 Minnesota Department of Human Services and their customers.

On 18 November 2025, Minnesota Department of Human Services (DHS) disclosed Data Breach issues under the banner "Minnesota Agency Reports 304,000-Person Data Breach Linked to Vendor Access Misuse".

The Minnesota Department of Human Services (DHS) has notified nearly 304,000 individuals of a data breach involving unauthorized access to its MnChoices system, a platform used by counties, tribal nations, and managed care organizations to assess eligibility for long-term serv...

The disruption is felt across the environment, affecting MnChoices system, and exposing Demographic details, names, addresses, dates of birth, Medicaid IDs, partial Social Security numbers, ethnicity, race, financial eligibility details, and program-specific data, with nearly 303,965 (plus 1,206 with additional exposure) records at risk.

In response, moved swiftly to contain the threat with measures like Access revoked for the provider on October 30, 2025, and stakeholders are being briefed through Notification to affected individuals.

The case underscores how Ongoing (DHS Office of Inspector General monitoring billing records for fraud), with advisories going out to stakeholders covering Notification sent 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.

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 high confidence (90%), with evidence including worker affiliated with a licensed healthcare provider accessed data, and user had legitimate access to limited information. Under the Credential Access tactic, the analysis identified Cloud Service Dashboard (T1552.006) with moderate to high confidence (70%), supported by evidence indicating accessed data beyond their authorized scope in MnChoices system. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), with evidence including retrieved more data than necessary for their role, and demographic details...compromised and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating accessed MnChoices system for eligibility assessments. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate confidence (50%), supported by evidence indicating no evidence of external hacking, but data was accessed beyond scope and Transfer Data to Cloud Account (T1537) with moderate confidence (60%), supported by evidence indicating worker retrieved data beyond authorized scope (implied local storage). Under the Defense Evasion tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating user had legitimate access, evaded detection for ~1 month. Under the Impact tactic, the analysis identified Data Manipulation: Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating dHS monitoring billing records for potential fraud. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.