CGI Breach Incident Score: Analysis & Impact (CGI1773398582)
The Rankiteo video explains how the company CGI has been impacted by a Breach on the date March 12, 2026.
Incident Summary
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Key Highlights From This Incident Analysis
- Timeline of CGI'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 Rankiteoโs incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts CGI Rankiteo cyber scoring and cyber rating.
- Rankiteoโs MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the CGI breach identified under incident ID CGI1773398582.
The analysis begins with a detailed overview of CGI's information like the linkedin page: https://www.linkedin.com/company/cgi, the number of followers: 1865028, the industry type: IT Services and IT Consulting and the number of employees: 70253 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 788 and after the incident was 738 with a difference of -50 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 CGI and their customers.
CGI Sverige recently reported "Swedish E-Government Platform Source Code Leaked in Suspected Cyberattack", a noteworthy cybersecurity incident.
A threat actor known as *ByteToBreach* has claimed responsibility for leaking source code and sensitive materials tied to Swedenโs e-government infrastructure, triggering an investigation by Swedish authorities and an incident response from CGI Sverige, the local subsidiary of...
The disruption is felt across the environment, affecting Two non-production test servers, and exposing Source code, configuration files, staff databases, potentially citizensโ personally identifiable information (PII).
In response, teams activated the incident response plan, and stakeholders are being briefed through Public acknowledgment of the incident.
The case underscores how Ongoing, with advisories going out to stakeholders covering Swedish authorities (CERT-SE, National Cyber Security Center) are investigating.
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 confidence (50%), supported by evidence indicating breach allegedly exposed internal files via non-production test servers and Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating staff databases compromised, suggesting possible account misuse. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with moderate to high confidence (70%), supported by evidence indicating configuration files and source code leaked, potentially containing credentials. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating source code, configuration files, staff databases, and PII compromised. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating threat actor *ByteToBreach* claimed responsibility for leaking materials and Exfiltration Over Web Service (T1567) with moderate confidence (60%), supported by evidence indicating leaked materials reviewed by security experts via public disclosure. Under the Impact tactic, the analysis identified Defacement: External Defacement (T1491.002) with moderate confidence (50%), supported by evidence indicating public disclosure of breach raises brand reputation concerns. Under the Discovery tactic, the analysis identified File and Directory Discovery (T1083) with moderate to high confidence (70%), supported by evidence indicating source code and configuration files accessed and exfiltrated. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources
- CGI Rankiteo Cyber Incident Details: http://www.rankiteo.com/company/cgi/incident/CGI1773398582
- CGI CyberSecurity Rating page: https://www.rankiteo.com/company/cgi
- CGI Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/cgi1773398582-cgi-sverige-breach-march-2026/
- CGI CyberSecurity Score History: https://www.rankiteo.com/company/cgi/history
- CGI CyberSecurity Incident Source: https://www.tradingview.com/news/cointelegraph:077d8119f094b:0-sweden-probes-reported-leak-of-e-government-platform-source-code/
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/static/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf






