AISI DFIR vs Disk Arbitrator: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
AISI DFIR is a commercial digital forensics and incident response tool by AISI. Disk Arbitrator 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.
Mac incident responders who need to validate forensic integrity during disk imaging should use Disk Arbitrator; it's the only free tool that actively prevents acquisition errors through real-time verification rather than post-hoc validation. The 700 GitHub stars and active maintenance reflect solid adoption among practitioners who can't justify commercial forensic suites for occasional imaging work. Skip this if your team relies on commercial forensic platforms like Cellebrite or EnCase, which bundle imaging with broader evidence analysis; Disk Arbitrator does one job well and stops there.
