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westerndigital.com Domain Breach Exposure Report

Risk Score

High Risk

Massive event volume or critical assets compromised.

AI Findings Summary

Critical

The telemetry indicates a significant exposure of client data, with 175,739 client records compromised, alongside 23,120 employee records. This exposure is primarily driven by historical data breaches, accounting for 143,816 events, and active infostealer logs, totaling 34,235 events. The timeline shows a notable surge in client data compromise in January 2026, with a smaller but still concerning increase in employee data during the same period. Malware families such as LummaC2 and Redline are prevalent, suggesting active credential harvesting and data exfiltration attempts targeting services like Auth0 login and signup portals associated with westerndigital.com. Given the high volume of client data breaches and the presence of active infostealer activity, this incident poses a critical risk to Western Digital. The focus for remediation should be on immediate incident response to contain ongoing infostealer activity, thorough forensic analysis of the historical data breaches to understand the full scope of compromised information, and a comprehensive review of authentication and access controls for services like Auth0 to prevent future exploitation. Prioritizing the protection of client and employee data is paramount.

Total Events

178,051
credential exposure events

Employee Affected Events

2,312
account email domain = westerndigital.com

Client Affected Events

175,739
service target = westerndigital.com

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12-Month Events Timeline

Event volume by breach date, employee VS client

EmployeesClients
50,00033,33316,6670
peak month 43,551
Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jun 26

Infostealers VS Data Breaches

Live stealer logs VS data breaches

Infostealer logs
Events34,235
Share19%
Data breaches
Events143,816
Share81%
Infostealer logs (19%)
34,235events
Data breaches (81%)
143,816events

2,312 compromised employee accounts pose an infrastructure risk, while 175,739 leaked client credentials create regulatory liability.

Antivirus Distribution

Security Tools on Infected Endpoints

Windows Defender770
Windows Defender.37
Windows Defender McAfee10
Windows Defender [ON]7
Malwarebytes6
McAfee6
Windows Defender McAfee VirusScan6
Malwarebytes [OFF]5
Windows Defender Avast Antivirus.4

Malware Families Distribution

Distribution of Active Stealer Strains

LummaC25,936
Redline5,540
Rhadamanthys3,371
Acreed2,612
Vidar1,646
StealC1,110
RisePro899
Millenium278
Remus234

Top Login URLs

Top exposed services found in the event results

  1. 1https://auth0.accounts.westerndigital.com/u/login27,552
  2. 2https://auth0.accounts.westerndigital.com/u/signup17,186
  3. 3auth0.accounts.westerndigital.com/u/login16,056
  4. 4https://auth0.accounts.westerndigital.com15,993
  5. 5auth0.accounts.westerndigital.com14,860
  6. 6auth0.accounts.westerndigital.com/u/signup9,836
  7. 7westerndigital.com4,784
  8. 8https://westerndigital.com3,471
  9. 9https://www.westerndigital.com3,378
  10. 10https://www.westerndigital.com/store/registration2,646

Infostealer By Geography

Shows the distribution of Infostealer-related credential exposure events across different geographic regions. The location is determined by analyzing the metadata of the infected machines associated with each event.

United States
Events2,001
India
Events1,871
Spain
Events1,711
Mexico
Events917
France
Events914
Italy
Events882
Germany
Events845
Thailand
Events781

Country Breakdown

  1. 1United States2,001
  2. 2India1,871
  3. 3Spain1,711
  4. 4Mexico917
  5. 5France914
  6. 6Italy882
  7. 7Germany845
  8. 8Thailand781

Services Classification Distribution

Blast radius - closer to core = more critical infrastructure, size = credential volume

-
Total

Operating System Distribution

Distribution of compromised endpoint builds

Windows 113,377
Windows 10 Enterprise x642,023
Windows 11 24H2 build 26100 (64 Bit)1,680
Windows 10 Pro (10.0.19045) x641,219
Windows 10 Pro1,150

Leak Repository Classification

Where the exposed records currently reside

0
Named breaches
141,503
Combolist pools
2,313
Unattributed dumps

Disclaimer: This report includes AI-generated content. AI can make mistakes, so verify important findings independently before taking action.