Incident Score: Analysis & Impact (COM1774477423)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Comcast'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 Comcast 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 Comcast breach identified under incident ID COM1774477423.
The analysis begins with a detailed overview of Comcast's information like the linkedin page: https://www.linkedin.com/company/comcast, the number of followers: 748034, the industry type: Telecommunications and the number of employees: 60619 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 166 and after the incident was 100 with a difference of -66 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 Comcast and their customers.
Comcast (Xfinity) recently reported "Comcast Data Breach Settlement", a noteworthy cybersecurity incident.
Comcast has agreed to a $117 million settlement in a class action lawsuit stemming from a data breach that exposed sensitive information belonging to approximately 30 million Xfinity customers.
The disruption is felt across the environment, and exposing Usernames, encrypted passwords, birth dates, security questions and answers, last four digits of Social Security numbers, with nearly 30 million records at risk, plus an estimated financial loss of $117 million settlement.
Formal response steps have not been shared publicly yet.
The case underscores how teams are taking away lessons such as The case reflects a growing trend of class action lawsuits following data breaches, highlighting the financial and reputational risks of failing to protect customer data, with advisories going out to stakeholders covering Details on how affected customers can file claims not yet provided.
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 confidence (60%), supported by evidence indicating usernames, encrypted passwords, security questions compromised and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating breach occurred in late 2023, no details on attack vector. Under the Credential Access tactic, the analysis identified Credentials from Password Stores (T1555) with moderate to high confidence (70%), supported by evidence indicating encrypted passwords compromised and Cloud Instance Metadata API (T1552.005) with lower confidence (40%), supported by evidence indicating security questions and answers exposed. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating usernames, birth dates, last four digits of SSNs compromised and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating 30 million customer records exposed. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating data breach affecting 30 million customers and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating no details on data exfiltration method. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating no evidence of data destruction, but breach occurred and Transmitted Data Manipulation (T1565.002) with lower confidence (40%), supported by evidence indicating risk of identity theft due to partial SSN exposure. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Comcast Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/comcast/incident/COM1774477423
- Comcast CyberSecurity Rating page: https://www.rankiteo.com/company/comcast
- Comcast Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/com1774477423-comcast-breach-march-2026/
- Comcast CyberSecurity Score History: https://www.rankiteo.com/company/comcast/history
- Comcast CyberSecurity Incident Source: https://turnto10.com/i-team/consumer-advocate/data-breach-impact-why-having-the-last-four-digits-of-your-ssn-exposed-is-still-dangerous
- 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