Workday Breach Incident Score: Analysis & Impact (WOR1768679649)

In this Rankiteo incident briefing, we review the Workday breach identified under incident ID WOR1768679649.

The analysis begins with a detailed overview of Workday's information like the linkedin page: https://www.linkedin.com/company/workday, the number of followers: 1323784, the industry type: Software Development and the number of employees: 26861 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 770 with a difference of -41 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 Workday and their customers.

On 16 August 2023, Workday disclosed Data Breach issues under the banner "Workday Third-Party Cyberattack Linked to ShinyHunters".

Workday, a leading HR platform provider, disclosed a cyberattack after threat actors breached its systems via a third-party supplier.

The disruption is felt across the environment, affecting Third-party CRM platform, and exposing Business contact information (names, email addresses, phone numbers).

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Revoked access to the third-party CRM platform, implemented additional safeguards, and stakeholders are being briefed through Public notice urging users to verify communications through official support channels.

The case underscores how Ongoing, teams are taking away lessons such as Growing risk of supply chain attacks via third-party vendors; importance of verifying communications through official channels, and recommending next steps like Enhance third-party vendor security assessments; educate users on phishing risks; implement multi-factor authentication for third-party access, with advisories going out to stakeholders covering Urged users to verify communications through official support channels.

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 (T1195) with high confidence (90%), with evidence including breached its systems via a third-party supplier, and exploit vulnerabilities in third-party vendors and Phishing (T1566) with moderate to high confidence (80%), supported by evidence indicating social engineering campaign targeting multiple large organizations. Under the Credential Access tactic, the analysis identified Compromise Accounts (T1586) with moderate to high confidence (70%), supported by evidence indicating social engineering campaign targeting third-party supplier. Under the Collection tactic, the analysis identified Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating accessed limited data from its third-party CRM platform and Data from Local System (T1005) with moderate to high confidence (70%), supported by evidence indicating business contact information (names, email addresses, phone numbers). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating stolen data potentially intended for further phishing scams. Under the Impact tactic, the analysis identified Defacement (T1491) with moderate confidence (50%), supported by evidence indicating brand reputation impact due to public disclosure of breach. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.