Keylogger

[Colin Watson]

On Sun, Dec 03, 2017 at 08:49:22AM +0900, Joel Rees wrote:
> If you are doing things that your local version of the NSA has interest in
> (or your local organized crime guys), for the cost of a scanning electron
> microscope and a bit of time, all sorts of things are recoverable.

Do you have a citation for a case where this has in fact been done after
a single straightforward pass of overwriting with (e.g.) zeroes?  This
idea has been wandering around for a long time, but it often seems to
resist substantiation.

https://www.nber.org/sys-admin/overwritten-data-gutmann.html and
http://www.infosecisland.com/blogview/16130-The-Urban-Legend-of-Multipass-Hard-Disk-Overwrite.html
(aside from the annoying popup in the latter case) look like plausible
rebuttals.

-- 
Colin Watson                                       [cjwatson at ubuntu.com]