Desjardins Breach Incident Score: Analysis & Impact (DES1767719603)

In this Rankiteo incident briefing, we review the Desjardins breach identified under incident ID DES1767719603.

The analysis begins with a detailed overview of Desjardins's information like the linkedin page: https://www.linkedin.com/company/desjardins, the number of followers: 365039, the industry type: Banking and the number of employees: 43222 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 794 and after the incident was 741 with a difference of -53 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 Desjardins and their customers.

Desjardins recently reported "Desjardins Data Breach and Fraud Scheme", a noteworthy cybersecurity incident.

Juan Pablo Serrano, wanted in connection with the Desjardins data breach, was arrested in Spain.

The disruption is felt across the environment, and exposing Desjardins members and customers data lists.

Formal response steps have not been shared publicly yet.

The case underscores how Ongoing (Extradition pending).

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%), supported by evidence indicating sébastien Boulanger-Dorval, a former Desjardins marketing employee and Trusted Relationship (T1199) with moderate to high confidence (80%), supported by evidence indicating exploited his access to sensitive information while employed. Under the Credential Access tactic, the analysis identified Credentials In Files (T1552.001) with moderate to high confidence (70%), supported by evidence indicating desjardins members and customers data lists compromised. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating exploited his access to sensitive information while employed and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating desjardins members and customers data lists. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating data exfiltration such as Yes in incident details and Exfiltration Over Web Service (T1567) with moderate confidence (60%), supported by evidence indicating illegal sale of personal data. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with lower confidence (30%), supported by evidence indicating no evidence of encryption, but fraud schemes executed and Stored Data Manipulation (T1565.001) with moderate confidence (50%), supported by evidence indicating fraud schemes using stolen data. Under the Defense Evasion tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating former Desjardins employee exploited legitimate access. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.