Leonidas vs Filigran OpenAEV: 2026 Comparison
Leonidas is a free threat simulation tool. Filigran OpenAEV is a commercial threat simulation tool by Filigran. Compare features, ratings, integrations, and community reviews side by side to find the best threat simulation fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Security teams building internal threat simulation programs on AWS or GCP will get the most from Leonidas because its YAML-based framework lets you define attacker procedures once and automatically generate executable code, detection rules, and documentation simultaneously, cutting your simulation development cycle by weeks. The 593 GitHub stars and active community contributions signal real adoption among cloud-native shops that prioritize repeatability over point-and-click simplicity. Skip this if your org needs a managed SaaS platform with guided scenarios and executive reporting; Leonidas assumes you're engineering-heavy and comfortable maintaining your own TTP library.
