Re: zero filling a storage device (was: dd and mbr)

On Fri, 14 Jan 2022 19:13:03 +0100
Ralf Mardorf <ralf-mardorf@riseup.net> wrote:

> Nothing on the operating system side of the SSD's controller (and its
> firmware) has got direct access to what's under the hood of the SSD.
> Due to wear leveling a SSD much likely keeps a lot of not really erased
> sensitive data. This data is not accessible/restoreable without
> replacing the firmware by a forensic tool or by an unhappy coincidence,
> but replacing firmware is way more likely, than a high-tech lab to
> restore secret data and even an unhappy coincidence isn't far too
> unlikely.

	I gather that military specs for deleting really secure data
involve thermite.

-- 
Steve O'Hara-Smith <steve@sohara.org>