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taboola.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 event impacting taboola.com, with a total of 20,163 events recorded between July 2025 and June 2026. The majority of these events, 17,490 (86.7%), are classified as historical data breaches, while 2,673 (13.3%) are active infostealer logs. Notably, the timeline shows a sharp increase in employee-related events in January 2026, with 1,359 occurrences, and a sustained high volume of client-related events throughout the latter half of the period, particularly in March, April, and June 2026. Malware families such as LummaC2, Redline, and Rhadamanthys are prevalent, suggesting credential harvesting and data exfiltration activities. The targeted services primarily include authentication endpoints for taboola.com, indicating potential compromise of login mechanisms. Geographically, Brazil, India, and the United States show the highest number of affected entities.

Total Events

20,163
credential exposure events

Employee Affected Events

1,880
account email domain = taboola.com

Client Affected Events

18,283
service target = taboola.com

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12-Month Events Timeline

Event volume by breach date, employee VS client

EmployeesClients
5,0003,3331,6670
peak month 4,444
Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jun 26

Infostealers VS Data Breaches

Live stealer logs VS data breaches

Infostealer logs
Events2,673
Share13%
Data breaches
Events17,490
Share87%
Infostealer logs (13%)
2,673events
Data breaches (87%)
17,490events

1,880 compromised employee accounts pose an infrastructure risk, while 18,283 leaked client credentials create regulatory liability.

Antivirus Distribution

Security Tools on Infected Endpoints

Windows Defender233
Windows Defender Avira Security8
Windows Defender Kaspersky Reason Cybersecurity4
Windows Defender McAfee Anti-Virus and Anti-Spyware4
Bitdefender3
Windows Defender Kaspersky3
Avira Security3
Windows Defender Guardian Total Security3
Windows Defender McAfee VirusScan2

Malware Families Distribution

Distribution of Active Stealer Strains

LummaC2433
Redline321
Rhadamanthys279
Vidar161
Acreed147
X-Files36
RisePro23
Millenium21
Blank Grabber20

Top Login URLs

Top exposed services found in the event results

  1. 1https://authentication.taboola.com/authentication/login4,467
  2. 2authentication.taboola.com/authentication/login3,210
  3. 3authentication.taboola.com1,937
  4. 4https://authentication.taboola.com1,932
  5. 5taboola.com1,715
  6. 6https://backstage.taboola.com/backstage/login419
  7. 7https://authentication.taboola.com/authentication/j_spring_security_check298
  8. 8backstage.taboola.com/backstage/login278
  9. 9https://authentication.taboola.com/260
  10. 10backstage.taboola.com248

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.

Brazil
Events468
India
Events332
United States
Events114
Israel
Events89
Pakistan
Events80
France
Events60
Bangladesh
Events41
Germany
Events39

Country Breakdown

  1. 1Brazil468
  2. 2India332
  3. 3United States114
  4. 4Israel89
  5. 5Pakistan80
  6. 6France60
  7. 7Bangladesh41
  8. 8Germany39

Services Classification Distribution

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

Jira (Atlassian)2

Operating System Distribution

Distribution of compromised endpoint builds

Windows 11201
Windows 11 24H2 build 26100 (64 Bit)173
Windows 10 Enterprise x64143
Windows 10 Pro (10.0.19045) x64111
Windows 10 22H2 build 19045 (64 Bit)110

Leak Repository Classification

Where the exposed records currently reside

0
Named breaches
15,761
Combolist pools
1,729
Unattributed dumps

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