Dartmouth College Breach Incident Score: Analysis & Impact (DAR3004130112725)

In this Rankiteo incident briefing, we review the Dartmouth College breach identified under incident ID DAR3004130112725.

The analysis begins with a detailed overview of Dartmouth College's information like the linkedin page: https://www.linkedin.com/company/dartmouth-college, the number of followers: 130595, the industry type: Higher Education and the number of employees: 6301 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 651 and after the incident was 390 with a difference of -261 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 Dartmouth College and their customers.

On 26 November 2025, Dartmouth College disclosed Data Breach issues under the banner "Dartmouth College Data Breach".

Dartmouth College recently detected suspicious activity on its computer network, indicating a data breach.

The disruption is felt across the environment, and exposing Names, Social Security numbers and Financial account information, with nearly Tens of thousands records at risk.

In response, teams activated the incident response plan, and stakeholders are being briefed through Public disclosure via press release; legal advisory by Murphy Law Firm.

The case underscores how Ongoing (forensic investigation completed; legal investigation by Murphy Law Firm in progress), with advisories going out to stakeholders covering Murphy Law Firm is advising affected individuals to join a class action lawsuit.

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 Exploit Public-Facing Application (T1190) with moderate to high confidence (85%), with evidence including exploited vulnerabilities in its inadequately secured network, and cybercriminals infiltrated the inadequately secured network. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (95%), supported by evidence indicating accessed files containing sensitive personal information... names, SSNs, financial data. Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol: Exfiltration to Cloud Storage (T1048.003) with moderate to high confidence (80%), with evidence including files accessed and acquired, and compromised data may be sold on the dark web. Under the Impact tactic, the analysis identified Data from Cloud Storage Object (T1598) with moderate to high confidence (75%), supported by evidence indicating data breach... tens of thousands of individuals PII/financial data exposed and Identity Theft (T1659) with high confidence (90%), supported by evidence indicating high risk of identity theft due to exposure of SSNs and financial data. Under the Defense Evasion tactic, the analysis identified Indicator Removal: File Deletion (T1070.004) with moderate confidence (60%), supported by evidence indicating forensic investigation *confirmed* breach (implies attacker attempted to hide traces). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.