wiping-in-place (needed?)

[René L. Reingard]

Am Fri, 08 Jul 2005 13:03:07 +0200 schrieb Lee Braiden  
<lee_b at digitalunleashed.com>:

> Also, I'm not sure moving things to trash then wiping them is secure.   
> You probably need to wipe in-place (the original file in the original  
> location),
> without renaming or making copies.

What others know?
Is that an true issue?
Thanks for elaborations.
René