Coupang Breach Incident Score: Analysis & Impact (COU1764771660)

In this Rankiteo incident briefing, we review the Coupang breach identified under incident ID COU1764771660.

The analysis begins with a detailed overview of Coupang's information like the linkedin page: https://www.linkedin.com/company/coupang, the number of followers: 226701, the industry type: Software Development and the number of employees: 7994 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 498 and after the incident was 435 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 Coupang and their customers.

Coupang recently reported "Coupang Massive Data Breach", a noteworthy cybersecurity incident.

Coupang experienced a massive data breach exposing the personal information of 33.7 million users, the largest in Korean history.

The disruption is felt across the environment, and exposing Personal information of 33.7 million users, with nearly 33.7 million records at risk.

Formal response steps have not been shared publicly yet.

Overall, the incident is a reminder of why proactive monitoring and strong governance matter.

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: Local Accounts (T1078.003) with high confidence (90%), supported by evidence indicating breach occurred five months ago due to a former employee. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating exposing the personal information of 33.7 million users and Automated Exfiltration (T1020) with moderate confidence (60%), supported by evidence indicating massive data breach... largest in Korean history. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with moderate confidence (50%), supported by evidence indicating former employee... remained undetected until recently. Under the Defense Evasion tactic, the analysis identified Indicator Removal: Clear Command History (T1070.003) with moderate confidence (60%), supported by evidence indicating remained undetected until recently and Hide Artifacts: Hidden Files and Directories (T1564.001) with moderate confidence (50%), supported by evidence indicating breach... remained undetected for five months. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.