altsantiri.gr Domain Breach Exposure Report

The domain altsantiri.gr has experienced a significant number of data breach events, totaling 308, primarily originating from combolist sources. Additionally, there were 79 instances of infostealer activity, with Redline and LummaC2 being the most prevalent malware families. The timeline indicates a surge in client-related events from August 2025 through March 2026, followed by a notable increase in employee-related events in March and April 2026. This suggests a period of heightened compromise targeting both user credentials and potentially sensitive internal data. The high volume of historical data breaches, predominantly from combolist sources, coupled with active infostealer logs, presents a substantial risk of credential stuffing attacks and unauthorized access to user accounts. The observed malware, such as Redline and LummaC2, is known for its ability to exfiltrate sensitive information, including login credentials and financial data. Prioritization should focus on immediate credential hygiene, including widespread password resets for both employees and clients, and enhanced monitoring for suspicious login activity, particularly targeting the identified login and logon endpoints.