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Chacham's Journal: Verbiage: Destroying data from hard drives and CDs 4

Journal by Chacham

Completely destroying a hard drive is hard. For the average person to destroy it, where another cannot come along and get some of the data is nearly impossible, or at least not feasible. So, those who are afraid of people getting at their data, wipe it. Or rewrite to it to push away most people. The amount of effort put in is the amount of deterence one wants. As one person told me, one cannot keep the dedicated away, but one can at least deter everyone else.

Compact discs are another matter, they can be easily destroyed. At first i tried burning them. That is, to hold it over a match or a candle. While that did work, it took a while to be noticeable. And then there's the writing on the other side. That was hard to get off even with burning. Last night, however, i found another method. It's a two-step method. The first is the fun thing of putting it in the microwave for a few seconds. Nice show, bad smell, but five seconds later the CD is toast. Step two, is then to scratch off the data. The writing, the label, and the data layer just flake away with ease. Perhaps for the truly paranoid the flakes should be burned, but it is seemingly doubtful that that is really needed. My only wonder is, if there is any residue left on the plastic disc.

No, there is no purpose. But pretending there is one make it a lot more fun. :)

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Verbiage: Destroying data from hard drives and CDs

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  • I work at a datacenter where we have access to highly sensitive data on some of the client boxes we host. If one of them was to fail a harddrive, we're to run Solaris' format -> analyze -> purge on them 7 times, then throw the disk on a magnetic 'cannon' for lack of a better term to totally frag it, then shred the drive in a machine that resembles a paper shredder on steroids, able of chewing through the metal of the drives.

    The shreds are then handed off to an agent of the government, and I'm guessi
    • If one of them was to fail a harddrive, we're to run Solaris' format -> analyze -> purge on them 7 times,

      Unfortunately, on modern drives, the firmware transparently remaps bad sectors without the host OS knowing about it. So, when Solaris (and you) believe the whole disk has been wiped 7 times, in reality there's a chunk of disk left totally untouched...

      then throw the disk on a magnetic 'cannon' for lack of a better term to totally frag it,

      ... until this bit ;-)

      then shred the drive in a machin

    • Wow. Wouldn't just smelting it be easier and effective? Just find wherever the terminator melted himself, and toss them in there. :)
  • ...there's always drive slagging [eecue.com]...

One possible reason that things aren't going according to plan is that there never was a plan in the first place.

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