VMS Drive Cleanup Assist

[Paul Koning]

>>>>> "Gordon" == Gordon JC Pearce <gordonjcp at gjcp.net> writes:

 Gordon> After the disk has been overwritten *once*, the data can not
 Gordon> be recovered without extremely specialised tools.  Write a
 Gordon> suitably random pattern over the whole disk a couple of
 Gordon> times, and it is gone.  Utterly gone.  No amount of prodding
 Gordon> with electron microscopes will bring it back.

There is an excellent article on this whole subject by Simson
Garfinkel -- I don't remember the title or publication.  He described
collecting a bunch of secondhand PCs and investigating what was left
on them, and discussed various cleanup tools and how well they defend
against attempts to recover data.

If a decisionmaking person is worried about this issue but interested
in hard facts, that article may be helpful to provide those facts.

   paul