Does selecting "Wipe Free Space dives" in settings perform a secure wipe? Do you have plans to add that in a future release?
Thanks!
Overwriting free space is a secure overwrite, in as much as what was there before is no longer retrievable, and is the same as the one pass secure delete option. The superflous multiple overwrite options are not offered, presumably because overwriting say 150 gb 35 times would mean writing 5,250 terabytes of data. It would be a toss-up who dies first, you or your disk.