Peter Nikolic wrote:
Now if they were truely of a Sensitive nature then the only way is total mechanical destruction then smelting for good measure but what a cost to hide the fact that someone had half a disc full of porno that seems to be the main thing people get there knickers in a not over what i the boss/wife finds i had porno on the drive well it's simple dont go there ..
As with all security issues, the cost of protection should be governed by the value of what has to protected. I'd suspect for the vast majority of disks, multiple wipes should suffice. Not many of us have scanning electron microscopes, nor the necessary skills to recover data so erased. If you're really worried, after wiping drill a hole or two through the drive.