AISI DFIR vs c-aff4: 2026 Comparison
AISI DFIR is a commercial digital forensics and incident response tool by AISI. c-aff4 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.
Forensics teams and incident responders who need to standardize evidence collection across heterogeneous tools should use c-aff4; it's the only open format that prevents vendor lock-in when building acquisition pipelines. The 214 GitHub stars and active adoption by NIST-recognized tools like Volatility demonstrate real-world traction in labs that care about reproducibility. Skip this if your shop has already standardized on proprietary formats or lacks engineers who can integrate a C/C++ library into existing workflows; c-aff4 demands technical depth to implement properly.
