vulture.com Domain Breach Exposure Report

The telemetry indicates a significant exposure of client data, with 717 historical data breaches and 90 active infostealer logs observed over the period from July 2025 to June 2026. The majority of these events, 88.8%, are attributed to historical data breaches, while 11.2% are linked to active infostealer activity. The data suggests that clients are the primary affected group, with 715 client-related events compared to 92 employee-related events. Malware families such as Rhadamanthys, Redline, and LummaC2 are associated with the infostealer activity, and the primary leak repository sources are combolists, accounting for 98.9% of the observed leaks. Given the high volume of historical data breaches and the presence of active infostealer logs, this exposure presents a critical risk. The prevalence of combolist sources suggests a broad compromise of credentials, potentially impacting a large number of client accounts. Remediation efforts should focus on credential hygiene, including mandatory password resets for all clients and employees, enhanced monitoring for suspicious login activity, and a review of data access controls to prevent further unauthorized access. The timeline shows a peak in client-related events in March 2026, suggesting a period of heightened compromise that warrants further investigation.