The free TrueCrypt 5 was recently released for Mac OS X (10.4 and 10.5 versions are available, as well as Windows and Linux versions). Some users, like me, may be frustrated trying to encrypt an entire drive or partition on the OSX version. TrueCrypt itself does not support HFS or HFS+ file systems so there is no obvious way to create a Mac-formatted, fully encrypted volume. Worse, if you use TrueCrypt to encrypt an entire (blank) drive and then use Disk Utility to create an HFS+ partition, the encryption gets overwritten. After much trial and error and lengthy encryption processes, I have found a solution. Note that for this test I used a USB-attached 160GB hard drive, so speed was pretty slow to begin with. Be sure the drive to be encrypted is either already blank or has been fully backed up to another device. This process will completely delete any files you had on the drive. Install and launch TrueCrypt. Select to create a new vo...

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