Broadcom Breach Incident Score: Analysis & Impact (BRO3362533111725)

In this Rankiteo incident briefing, we review the Broadcom breach identified under incident ID BRO3362533111725.

The analysis begins with a detailed overview of Broadcom's information like the linkedin page: https://www.linkedin.com/company/vmware, the number of followers: 589166, the industry type: Semiconductor Manufacturing and the number of employees: 53946 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 723 and after the incident was 723 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 Broadcom and their customers.

Broadcom Inc. recently reported "Ransomware Attack on Business Systems House (BSH) Leading to Broadcom Employee Data Theft", a noteworthy cybersecurity incident.

A ransomware attack on Business Systems House (BSH), a Middle Eastern partner of payroll provider ADP, resulted in the theft of Broadcom employee data in September 2024.

The disruption is felt across the environment, and exposing Broadcom employee data.

Formal response steps have not been shared publicly yet.

The case underscores how disclosed (May 2025).

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 Supply Chain Compromise: Compromise Software Dependencies and Development Tools (T1195.002) with moderate to high confidence (85%), supported by evidence indicating third-party vendor vulnerability (BSH), supply chain attack, Broadcoms transition between payroll providers and Valid Accounts: Cloud Accounts (T1078.004) with moderate to high confidence (75%), supported by evidence indicating bSH, a Middle Eastern payroll partner of ADP (abused trusted third-party access). Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with moderate confidence (60%), supported by evidence indicating third-party vendor vulnerability (BSH) (implied poor credential hygiene during transition). Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol: Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol (T1048.003) with high confidence (90%), supported by evidence indicating data exfiltration such as yes (leaked online in December 2024) and Automated Exfiltration: Traffic Duplication (T1020.001) with moderate to high confidence (70%), supported by evidence indicating prolonged risks of undetected data exfiltration in ransomware attacks. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (80%), supported by evidence indicating ransomware attack, El Dorado ransomware group and Data Destruction (T1485) with moderate to high confidence (70%), supported by evidence indicating data exfiltration such as yes, leaked online in December 2024 (implied data exposure/destruction). Under the Defense Evasion tactic, the analysis identified Indicator Removal: File Deletion (T1070.004) with moderate confidence (65%), supported by evidence indicating delayed disclosure (8 months) (suggests log/trace removal or obfuscation) and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (60%), supported by evidence indicating prolonged risks of undetected data exfiltration (implies defense impairment). Under the Lateral Movement tactic, the analysis identified Remote Services: Windows Remote Management (T1021.006) with moderate confidence (50%), supported by evidence indicating third-party vendor (BSH) compromise (possible lateral movement to Broadcom data). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.