pfizer.com Domain Breach Exposure Report

The telemetry indicates a significant exposure event impacting pfizer.com, with a risk score of 100. Over the period from July 2025 to June 2026, there were 182,746 total events, overwhelmingly comprising 179,622 historical data breaches (98.3%) and 3,124 active infostealer logs (1.7%). The data breaches suggest a large-scale compromise of sensitive information, while the infostealer activity points to ongoing credential harvesting. The timeline shows a sharp increase in employee-related events in January 2026, coinciding with a surge in client-related events in March 2026, indicating potential widespread impact across both user groups. The primary malware families associated with infostealer activity are Redline (64.7%), Rhadamanthys (5.5%), and LummaC2 (5%), all known for their ability to exfiltrate credentials and sensitive data from compromised systems. Targeted services include the main pfizer.com domain and its associated job portals, suggesting a focus on employee and potentially applicant data. The majority of data appears to originate from "Database dumps" (64.5%) and "Combolist sources" (35.5%), indicating compromised credentials and potentially large-scale data exfiltration. Given the high risk score and the nature of the events, this exposure requires immediate attention. The prevalence of historical data breaches and active infostealer logs, particularly those targeting employee and client-related services, suggests a high likelihood of compromised credentials and sensitive data. Prioritization should focus on incident response, including thorough investigation of the data breaches and infostealer activity, identification of compromised accounts and data, and implementation of robust credential hygiene measures. Remediation efforts should concentrate on securing affected systems, revoking compromised credentials, enhancing monitoring for further suspicious activity, and reinforcing security awareness training for employees to mitigate the risk of credential compromise and further data exfiltration.