A Security vs C3: Side-by-Side Comparison (2026)

A Security: Autonomous offensive security platform that finds, validates, and remediates attack paths. built by A Security. Core capabilities include Continuous 24/7 automated attack campaigns, Attack path discovery and prioritization, Exploit chaining into validated kill-chains..

C3: C3 is a framework by WithSecureLabs for rapid prototyping of custom command and control channels that integrates with existing offensive security toolkits..

Both serve the Red-Team & Adversary Emulation market but differ in approach, feature depth, and target audience.

A Security is developed by A Security. C3 is open-source with 1,735 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

A Security and C3 serve similar Red-Team & Adversary Emulation use cases: both are Red-Team & Adversary Emulation tools, both cover Red Team. Key differences: A Security is Commercial while C3 is Free, C3 is open-source. Review the feature comparison above to determine which fits your requirements.