HACEMOS at AT&T Breach Incident Score: Analysis & Impact (HAC1764612339)

In this Rankiteo incident briefing, we review the HACEMOS at AT&T breach identified under incident ID HAC1764612339.

The analysis begins with a detailed overview of HACEMOS at AT&T's information like the linkedin page: https://www.linkedin.com/company/hacemosatatt, the number of followers: 2031, the industry type: Fundraising and the number of employees: 17 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 756 and after the incident was 566 with a difference of -190 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 HACEMOS at AT&T and their customers.

AT&T recently reported "AT&T Data Breach Settlement", a noteworthy cybersecurity incident.

AT&T agreed to a $177 million legal settlement following a data breach announced nearly a year and a half prior.

The disruption is felt across the environment, and exposing True, plus an estimated financial loss of $177 million (settlement amount).

In response, and stakeholders are being briefed through Customer advisories and public settlement announcement.

The case underscores how Settlement pending court approval (final hearing on December 3, 2024), with advisories going out to stakeholders covering Customers encouraged to file claims by December 18, 2024.

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 Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), with evidence including data compromised such as true, and attack with significant impact with customers data leaks. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with lower confidence (30%), supported by evidence indicating data compromised such as true (implied data misuse) and Data Destruction (T1495) with lower confidence (20%), supported by evidence indicating legal liabilities such as $177 million (suggests severe data misuse). Under the Initial Access tactic, the analysis identified Valid Accounts (T1078) with moderate confidence (50%), supported by evidence indicating customer complaints such as true (possible abuse of valid accounts) and Exploit Public-Facing Application (T1190) with lower confidence (40%), supported by evidence indicating telecommunications Company (public-facing systems likely targeted). Under the Credential Access tactic, the analysis identified Unsecured Credentials (T1552) with moderate confidence (60%), supported by evidence indicating customers data leaks (implies credential/data exposure). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.