A3Sec CTEM vs Nucleus Vulnerability Intelligence Platform: 2026 Comparison

A3Sec CTEM: Managed CTEM service for continuous attack surface & threat exposure mgmt. built by A3Sec. headquartered in Spain. Core capabilities include Continuous asset discovery and mapping, including unknown assets, with a dynamic inventory, Real-time visibility into all assets and their exposure levels, Automated attack simulations to validate vulnerability exploitability..

Nucleus Vulnerability Intelligence Platform: Centralized vuln intelligence platform with aggregation and risk prioritization. built by Nucleus Security. headquartered in United States. Core capabilities include Vulnerability aggregation from multiple security tools, Risk-based vulnerability prioritization with asset context, Automated remediation workflows..

Both serve the Exposure Management market but differ in approach, feature depth, and target audience.