CIFv3 vs Filigran OpenCTI: 2026 Comparison
CIFv3 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 running threat intelligence pipelines on Linux infrastructure will get the most from CIFv3 if they already understand indicator enrichment and feed aggregation; it costs nothing and integrates well with existing SIEM workflows. The 229 GitHub stars reflect a small but committed user base, not mainstream adoption. Skip this if your team needs a polished UI, vendor support, or out-of-the-box feeds; CIFv3 demands engineering lift and institutional knowledge to operationalize.
