Coupang Breach Incident Score: Analysis & Impact (COU1764684623)

In this Rankiteo incident briefing, we review the Coupang breach identified under incident ID COU1764684623.

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 811 and after the incident was 751 with a difference of -60 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.

On 18 November 2023, Coupang disclosed Data Breach issues under the banner "Coupang Massive Data Breach".

Coupang, South Korea's largest e-commerce platform, faced a massive data breach affecting the personal information of 33.7 million customer accounts.

The disruption is felt across the environment, and exposing Basic personal information of 33.7 million customer accounts, with nearly 33.7 million records at risk.

In response, and stakeholders are being briefed through Public apology issued; cooperation with government agencies emphasized.

The case underscores how Ongoing (as of report date), and recommending next steps like Strengthen penalties for data protection negligence, Enhance cooperation between government agencies and private firms and Improve monitoring and detection of unauthorized access, especially from overseas servers, with advisories going out to stakeholders covering Public apology issued; customers advised to monitor personal information.

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: Cloud Accounts (T1078.004) with moderate to high confidence (70%), supported by evidence indicating unauthorized access to customer accounts began on June 24 and was executed through overseas servers and External Remote Services (T1133) with moderate to high confidence (85%), supported by evidence indicating unauthorized access ... executed through overseas servers. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating compromised information is limited to basic personal data of 33.7 million customer accounts. 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 (80%), with evidence including data exfiltration such as Yes (accessed via overseas servers), and unauthorized access ... executed through overseas servers. Under the Persistence tactic, the analysis identified Account Manipulation: Additional Cloud Credentials (T1098.003) with moderate confidence (65%), with evidence including reconnaissance period such as June 24 to November 18 (approx. 5 months), and unauthorized access to customer accounts. Under the Defense Evasion tactic, the analysis identified Indicator Removal: File Deletion (T1070.004) with moderate confidence (60%), supported by evidence indicating reconnaissance period such as June 24 to November 18 (5 months) before detection and Impair Defenses: Disable Cloud Logs (T1562.001) with moderate to high confidence (70%), supported by evidence indicating improve monitoring and detection of unauthorized access (implied evasion of existing defenses). Under the Discovery tactic, the analysis identified File and Directory Discovery (T1083) with moderate to high confidence (75%), supported by evidence indicating compromised information is limited to basic personal data (suggests targeted discovery). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.