SignetRisk is a cyber risk quantification platform that provides organizations with visibility into their cyber risk exposure across multiple scenarios including business interruption, data loss, recovery costs, and legal fines. The platform offers two levels of cyber risk assessments. Level 1 assessments utilize SignetScore, a predictive cyber risk scoring system that does not rely on IP address or asset mapping. These assessments are designed for rapid deployment and scalability across vendor portfolios. Level 2 assessments provide deeper analysis of cloud security posture based on AWS and Azure environments through streamlined workflows for vendor onboarding and cyber insurance applicants. SignetRisk includes enterprise cyber risk loss scenario modeling that allows organizations to develop views of their cyber risk exposures for decisions regarding risk transfer through insurance and risk retention. The platform supports portfolio cyber risk management by aggregating Level 1 and Level 2 assessments across multiple organizations to identify technology dependencies and analyze risk aggregation. The platform uses digital signature-based detection to identify technology dependencies for risk aggregation and diversification analysis. This approach is designed to provide reliable data for understanding portfolio resilience to system risks and hidden dependencies across collections of organizations.