How to erase Linux?

[Gabriel Dragffy]

Dave Howorth wrote:
> Gabriel Dragffy wrote:
>> How how would even the NSA recover meaningful data after 25 re-writes, 
>> voodoo magic? :P
> 
> Magnetic force microscopy using an AFM, for one. I can't find any images
> right now but in some pictures I've seen you can see an erased path down
> the centre of the track and original data down both sides. Quite easy to
> read on the MFM image and I'd guess you might be able to build
> specialized magnetic read heads to just read those portions of the track.
> 

Even after 25 random rewrites?

> Burn and smash the disk if you really want to hide the data :)
> 
> Cheers, Dave
> 
Ev