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Disk Arbitrator is a forensic utility designed to help the user ensure that the correct procedures are followed during imaging of a disk device. It is essentially a user interface to the disk-arbitration framework, which enables a program to participate in the management of block storage devices, including the automatic mounting of file systems. When enabled, Disk Arbitrator will block the mounting of file systems to avoid mounting as read-write and violating the integrity of the evidence.

It is important to note that Disk Arbitrator is not a software write blocker---it does not change the state of currently more...

What's New

Version 0.4.2:
  • Added Developer ID signature for Gatekeeper.
  • Updated for Xcode 4.5 (should have no affect on behavior).
  • Removed PPC architecture.


OS X 10.5 or later

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4 1


Current Version (0.x)


Downloads 3,113
Version Downloads 3,113
Date 19 Jun 2013
Platform Intel 64 / OS X / Intel 32
Price Free
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