fiserv.com Domain Breach Exposure Report
Risk Score
Massive event volume or critical assets compromised.
AI Findings Summary
The telemetry indicates a significant exposure event impacting fiserv.com, with 80,597 historical data breaches and 3,195 active infostealer logs detected over the reporting period. The majority of the exposure, 96.2%, is attributed to historical data breaches, while 3.8% relates to active infostealer activity. The timeline shows a substantial increase in employee and client-related events starting in September 2025 and peaking in January 2026, with a notable secondary peak in March 2026. Malware analysis reveals Redline as the predominant infostealer family (57.7%), followed by Rhadamanthys (8.1%) and LummaC2 (6.3%). The exposure is geographically concentrated in the United States, Netherlands, and Germany. The data suggests a high-risk scenario due to the sheer volume of historical breaches and the presence of active infostealer campaigns targeting employee and client data, potentially leading to widespread credential compromise and further downstream attacks.
Total Events
Employee Affected Events
Client Affected Events
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12-Month Events Timeline
Event volume by breach date, employee VS client
Infostealers VS Data Breaches
Live stealer logs VS data breaches
76,107 compromised employee accounts pose an infrastructure risk, while 7,685 leaked client credentials create regulatory liability.
Antivirus Distribution
Security Tools on Infected Endpoints
Malware Families Distribution
Distribution of Active Stealer Strains
Top Login URLs
Top exposed services found in the event results
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.
Country Breakdown
Services Classification Distribution
Blast radius - closer to core = more critical infrastructure, size = credential volume
Operating System Distribution
Distribution of compromised endpoint builds
Leak Repository Classification
Where the exposed records currently reside
Disclaimer: This report includes AI-generated content. AI can make mistakes, so verify important findings independently before taking action.