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Re: [tlug] Disposing of hard drives

On Thu, Apr 19, 2018 at 12:11 PM, Curt Sampson <> wrote:
> On 2018-04-19 09:51 +0200 (Thu), Kalin KOZHUHAROV wrote:
>> For an extra step, smash the ICs on the controller board (single
>> hammer blow is enough usually).
> Is there any useful information in the non-volatile storage on those ICs?
> Is there even any non-volatile storage?
Yes and yes.
Usually not user data, but beware those hybrid (SSHD) drives!
Quick picture search turned up this

Some drives store encryption keys in the main controller memory (yes
that will require reading the warped platters, but still).

> I'm curious: how does this help?
It is easy enough step that does not hurt.

DoD still considers only physical shredding/incinerating the only safe
method for top secret data, LoL.


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