Insecure Permissions on Firewire Hard Disks - OS X

When you mount a firewire hard disk under OS X it will mount with the 'Ignore ownership on this volume' option set. What this means is that owner information and file permissions will be ignored. Apple does this so that you can share a disk across multiple systems that may not have the same users on the system; however, from a security standpoint it can create some major problems.

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Be sure to set this option to off after you create your volume on the new firewire disk.

Posted by Casey on Wednesday, August 8, 2007 in Apple and Security.