AISI DFIR vs Hayabusa: 2026 Comparison
AISI DFIR is a commercial digital forensics and incident response tool by AISI. Hayabusa 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.
Incident responders and threat hunters working Windows environments need Hayabusa for one reason: it parses event logs 10x faster than manual timeline construction and surfaces threat artifacts most analysts miss on first pass. The tool's 3,000+ GitHub stars and active contributor base mean its detection logic stays current with real-world Windows attacks, and it runs on commodity hardware without agent deployment. Skip this if your team rarely touches Windows logs or you need something with GUI-driven investigation; Hayabusa is CLI-first and assumes log analysis expertise.
