Comcast Breach Incident Score: Analysis & Impact (COM1920819112525)

In this Rankiteo incident briefing, we review the Comcast breach identified under incident ID COM1920819112525.

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: 706769, the industry type: Telecommunications and the number of employees: 60212 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 486 and after the incident was 423 with a difference of -63 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 recently reported "Comcast Data Breach and FCC Settlement", a noteworthy cybersecurity incident.

Comcast faces a $1.5 million fine for a data breach affecting 237,000 customers.

The disruption is felt across the environment, and exposing Customer data (237,000 records), with nearly 237,000 records at risk, plus an estimated financial loss of $1.5 million (fine).

In response, and began remediation that includes Improved vendor oversight (as per FCC mandate).

The case underscores how and recommending next steps like Enhance third-party vendor oversight and compliance monitoring to prevent future breaches.

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 Trusted Relationship (T1199) with moderate to high confidence (85%), with evidence including inadequate vendor oversight, leading to unauthorized access, and root causes such as Likely related to third-party vendor vulnerabilities. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating exposed the personal information of 237,000 customers... names, addresses, phone numbers, and potentially financial details. Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol: Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol (T1048.003) with moderate to high confidence (70%), supported by evidence indicating unauthorized access to sensitive customer data (method unspecified, but implied transfer). Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (10%), supported by evidence indicating no confirmed identity theft or fraudulent transactions (low confidence; data exposure without confirmed misuse) and Network Denial of Service: Disruption of External Services (T1498.002) with lower confidence (20%), supported by evidence indicating reputational damage and erosion of customer trust (indirect impact). Under the Defense Evasion tactic, the analysis identified Valid Accounts: Cloud Accounts (T1078.004) with moderate confidence (60%), supported by evidence indicating third-party vendor vulnerabilities (possible abuse of legitimate vendor credentials/access). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.