Hey, When using the Disk Utility free space wipe to wipe sensitive data (using the 7 times option), I thought that would be sufficient. I was wondering though, does the free space wipe option also wipe the slack files on the hard drive? Is this even an issue for a Mac? (I know on Windows the slack file needs to be wiped for a completely secure erase, right?) I guess I just don't know enough about this; any help would be appreciated! Thank you.