A3Sec CTEM vs Cybellum Product Security Platform: 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..

Cybellum Product Security Platform: AI-driven platform for product security: SBOM mgmt, vuln mgmt & compliance. built by Cybellum. Core capabilities include SBOM creation, merging, auto-fix, deduplication, and validation from multiple sources (binaries, source code, uploaded files), Product vulnerability and risk detection, triage, and management with AI-assisted VM CoPilot, Automated evidence creation and policy validation for regulatory compliance submissions..

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

A3Sec CTEM differentiates with 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. Cybellum Product Security Platform differentiates with SBOM creation, merging, auto-fix, deduplication, and validation from multiple sources (binaries, source code, uploaded files), Product vulnerability and risk detection, triage, and management with AI-assisted VM CoPilot, Automated evidence creation and policy validation for regulatory compliance submissions.

A3Sec CTEM is developed by A3Sec. Cybellum Product Security Platform is developed by Cybellum. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

A3Sec CTEM and Cybellum Product Security Platform serve similar Exposure Management use cases: both are Exposure Management tools. Review the feature comparison above to determine which fits your requirements.