A3Sec CTEM vs Siemba AISO: Side-by-Side Comparison (2026)

A3Sec CTEM: Managed CTEM service for continuous attack surface & threat exposure mgmt. built by A3Sec. 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..

Siemba AISO: AI-powered security officer for CTEM platforms providing threat insights. built by Siemba. Core capabilities include AI-generated threat insights with contextual vulnerability prioritization, Remediation efficiency tracking with MTTR trends and vulnerability aging analysis, Unified CTEM view across EASM, VA, DAST, and PTaaS modules..

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