A Security vs Social-Engineer Toolkit (SET): 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..

Social-Engineer Toolkit (SET): An open-source penetration testing framework for social engineering with custom attack vectors..

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

A Security is developed by A Security. Social-Engineer Toolkit (SET) is open-source with 12,355 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

A Security and Social-Engineer Toolkit (SET) serve similar Red-Team & Adversary Emulation use cases. Key differences: A Security is Commercial while Social-Engineer Toolkit (SET) is Free, Social-Engineer Toolkit (SET) is open-source. Review the feature comparison above to determine which fits your requirements.