Quote:
Originally Posted by Shaggy
It is trivial. I'm sorry you do not know how to successfully delete a file.
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If you delete the file by pressing DEL button, then empty the trashcan, then format the disk, file still can be recovered by a knowledgeable user with tools downloaded from the net.
Even so, you never know what remained in the swapfile, or some temporary directory.
If you overwrite the formatted disk with zeroes and then with random data, the file STILL can be recovered. This time you would have to use special forensic software and you would have to exchange the board with electronics on the HD with a custom made one.
Military regulations require at least 7 times overwrite the disk with random data before it is considered deleted. Disks with sensitive data have to be physically destroyed.