> -----Original Message----- > From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On > Behalf Of EGO-II.1 > Sent: den 9 februari 2016 09:00 > To: CentOS mailing list > Subject: Re: Utility to zero unused blocks on disk > > > > >> the only truly safe way to destroy data on magnetic media is to grind > >> the media up into filings or melt it down in a furnace. > > I unscrew the casing, extract the disk platter(s), slide a very strong > > magnet over both sides of the platter surface then bend the platter in > > half. > > > > How secure is that ? > > > > I can't afford a machine that grinds everything into dust particles. > I have seen a guy in the I.T. department where I work take a hard > drive....remove as many stickers from it (to make it porous as possible) > and then soak it in a "brine" of ammonia, hydrogen peroxide, bleach, and > salted water...for like a week or two. Afterwards? total useless junk. I often find harddrives with several 10 mm drill-holes in them, in the electronics disposal room at work. I'd say that'd be enough as well. 8-) -- //Sorin
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