On Mon, 2016-02-08 at 14:22 -0800, John R Pierce wrote:> 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. -- Regards, Paul. England, EU. England's place is in the European Union.
On 02/08/2016 06:38 PM, Always Learning wrote:> > On Mon, 2016-02-08 at 14:22 -0800, John R Pierce wrote: > >> 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 a sledge hammer. It's good exercise and fun. -- -- Steve
On 02/08/2016 07:38 PM, Always Learning wrote:> On Mon, 2016-02-08 at 14:22 -0800, John R Pierce wrote: > >> 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. EGO II
> -----Original Message----- > From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On > Behalf Of EGO-II.1 > Sent: den 9 februari 2016 09:00 > To: CentOS mailing list > Subject: Re: [CentOS] 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