AISI DFIR vs extundelete: 2026 Comparison
AISI DFIR is a commercial digital forensics and incident response tool by AISI. extundelete 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 response teams investigating Linux systems need extundelete when file carving speed matters more than UI polish; it recovers deleted files from ext3 and ext4 partitions faster than graphical alternatives because it's a command-line tool without overhead. The utility has been stable across decades of Linux distributions and requires no installation beyond a single binary. Skip this if your team lacks Linux command-line competency or needs to recover from encrypted filesystems; extundelete won't help there, and the learning curve will slow your timeline.
