Marks and Spencer Breach Incident Score: Analysis & Impact (CHRMAR1769504421)

In this Rankiteo incident briefing, we review the Marks and Spencer breach identified under incident ID CHRMAR1769504421.

The analysis begins with a detailed overview of Marks and Spencer's information like the linkedin page: https://www.linkedin.com/company/marks-and-spencer, the number of followers: 736458, the industry type: Retail and the number of employees: 41277 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 100 and after the incident was 100 with a difference of 0 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 Marks and Spencer and their customers.

Dior recently reported "Dior Hit by Suspected Ransomware Attack, Customer Data Exposed", a noteworthy cybersecurity incident.

French luxury fashion house Dior has fallen victim to a suspected ransomware attack, with hackers gaining unauthorized access to internal servers and compromising sensitive customer data.

The disruption is felt across the environment, affecting Internal servers, and exposing Names, gender details, phone numbers, email and postal addresses, purchase history, fashion preferences categorized by gender and age.

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Security measures implemented to contain the breach and prevent further spread of the malware, and stakeholders are being briefed through Customers advised to monitor their accounts for suspicious activity; updates to be provided as new details emerge.

The case underscores how Ongoing, with advisories going out to stakeholders covering Monitor accounts for suspicious activity; stolen data may be exploited in phishing schemes over the next 6 to 12 months.

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 Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating hackers gaining unauthorized access to internal servers and Valid Accounts (T1078) with lower confidence (40%), supported by evidence indicating unauthorized access to internal servers. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate confidence (60%), supported by evidence indicating file-encrypting malware involved. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with lower confidence (40%), supported by evidence indicating unauthorized access to internal servers. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), with evidence including file-encrypting malware involved, and data encryption such as Yes. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating names, gender details, phone numbers, email and postal addresses compromised and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating purchase history, fashion preferences categorized by gender and age. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), with evidence including sensitive customer data compromised, and poses risks for targeted phishing attacks. Under the Defense Evasion tactic, the analysis identified Obfuscated Files or Information (T1027) with moderate confidence (60%), supported by evidence indicating file-encrypting malware involved and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (50%), supported by evidence indicating security measures implemented to contain the breach. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.