FourCore ATTACK vs Harpoon: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
FourCore ATTACK is a commercial offensive security tool by FourCore. Harpoon is a free offensive security tool. Compare features, ratings, integrations, and community reviews side by side to find the best offensive security fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, company size fit, deployment model, here is our conclusion:
Mid-market and enterprise teams that need to prove their defenses actually work against real adversary tactics will get the most from FourCore ATTACK. Its adversary emulation engine forces you to test detection and response workflows with evidence of what failed, moving beyond checkbox compliance toward ID.RA risk assessment that sticks with your board. Skip this if your team lacks the security maturity to act on emulation findings; the tool surfaces gaps faster than your people can typically close them.
Security teams building container testing programs or red-teaming Kubernetes deployments should grab Harpoon for its distilled attack patterns and exploitation techniques specific to orchestration layers. At 142 GitHub stars with active community contribution, it's proven useful enough that practitioners keep referencing it in their labs and assessments. This is a reference guide and technique collection, not a scanning or detection tool, so skip it if you need automated vulnerability identification or compliance reporting; Harpoon teaches you how to break things, not find what's already broken.
