Re: [gentoo-user] "wiping" unused space and/or secure erasing of files

[Octavio Ruiz (Ta^3)]

Alexander Skwar, who happens to be smarter than you, thinks:
> Dale schrieb:
>
> > Those forensics folks sure are good though.  I have heard they can get
> > it back even after you have wrote alternating 1's and 0's to the drive a
> > dozen times.
>
> Where have you heard that? I don't think they can do that.

Yes, they can.

In a magnetic medium they are techniques to identify when a sector are
storing an 0, and before that 0 was an 1 and before that another 1... I
suppose is a high precision measurement of magnetic freqs.

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