Threat Bus vs Filigran OpenCTI: 2026 Comparison
Threat Bus is a free threat intelligence platforms tool. Filigran OpenCTI is a commercial threat intelligence platforms tool by Filigran. Compare features, ratings, integrations, and community reviews side by side to find the best threat intelligence platforms fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Security teams already invested in open-source detection tools,Suricata, Zeek, YARA,should use Threat Bus to stop manually feeding threat intelligence into each tool separately. Its STIX-2 plugin architecture acts as a single dissemination layer, meaning one intelligence feed updates all your detection engines at once; the 270 GitHub stars and active maintainers suggest real operational use, not abandoned code. Skip this if you're a small team running one or two commercial tools with built-in threat feeds, or if your stack demands a vendor-locked platform.
