AISI DFIR vs Fibratus: 2026 Comparison
AISI DFIR is a commercial digital forensics and incident response tool by AISI. Fibratus is a free digital forensics and incident response tool. Compare features, ratings, integrations, and community reviews side by side to find the best digital forensics and incident response 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:
Mid-market and enterprise security teams that need to move fast on active incidents will find AISI DFIR's managed service model cuts through the hiring shortage for in-house forensics expertise. The Scout and Hunter tools automate evidence collection and persistence removal directly on affected systems, compressing response timelines that would otherwise stretch weeks. The caveat: this is a managed service first, so your team trades hands-on control for speed and specialist depth, making it less suitable for organizations that need full visibility and control over every forensic decision.
Windows incident responders and threat hunters working inside corporate networks will get the most from Fibratus because it gives raw kernel-level visibility into process behavior without the licensing cost of commercial EDR. It's free and open-source with 2,373 GitHub stars, which means you're getting tested code plus a community that actually uses it for real investigations. Skip this if you need cross-platform coverage or graphical case management; Fibratus is Windows-only and command-line driven, built for practitioners who think in system calls, not dashboards.
