mosaicco.com Domain Breach Exposure Report

The telemetry indicates a significant exposure event for mosaicco.com, with 43,406 historical data breaches and 1,936 active infostealer logs observed over the reporting period. The majority of these events, 95.7%, are attributed to historical data breaches, while 4.3% are active infostealer logs. The timeline shows a peak in employee-related events in September 2025 and January 2026, and client-related events also peaked in September 2025. The primary malware family associated with infostealer activity is Redline, accounting for 89.9% of observed malware. Targeted services include various subdomains of mosaicco.com, particularly those related to authentication and freight services, alongside Microsoft and Citrix services. The high volume of historical data breaches and active infostealer logs, coupled with the prevalence of Redline malware, suggests a critical risk to sensitive information. The data breaches are largely sourced from combolist sources and database dumps, indicating potential credential stuffing or large-scale data leaks. The focus for remediation should be on strengthening authentication mechanisms, reviewing access controls, and enhancing data protection measures to mitigate the impact of past and ongoing credential compromise and data exfiltration. The observed operating systems are predominantly older Windows versions, which may present additional vulnerabilities.