outbrain.com Domain Breach Exposure Report

The telemetry indicates a severe exposure for outbrain.com, with a high risk score of 99. The primary concern stems from 16,022 historical data breaches, which constitute 87.7% of the total events, and 2,241 active infostealer logs, representing 12.3% of events. The timeline shows a significant spike in employee and client-related events in January 2026, with 1,082 employee events and 1,474 client events, suggesting a potential period of heightened compromise. The data breach and infostealer events are heavily linked to "Combolist sources" (91.2%) and "Database dumps" (8.8%), indicating credential stuffing or data leakage as the likely vectors. The prevalence of infostealer malware families like LummaC2, Redline, and Rhadamanthys, along with targeted services such as my.outbrain.com, points to a sophisticated threat actor likely aiming to exfiltrate credentials and sensitive information. The geographical breakdown shows a significant number of events originating from India, Brazil, and the United States, which could represent compromised user bases or attack origins. Given the high risk score and the nature of the events, immediate investigation into the root cause of the data breaches and infostealer activity is critical, with a focus on credential compromise, data exfiltration, and the security of the my.outbrain.com platform.