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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

What's New

Version 0.5:
  • Added lock icon to disks that are read-only
  • Fixed launchd plist containing hard coded app path
  • Improved compatibility with OS X 10.10
  • Improved code stability


  • OS X 10.5 or later

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Disk Arbitrator User Discussion

4 2


Current Version (0.x)


Downloads 5,988
Version Downloads 2,825
License Free
Date 10 Sep 2015
Platform Intel 64 / OS X / Intel 32
Price Free
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