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Old 20-08-06, 03:21 PM   #21
SoulKiss
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Default Chavcyle it

Londonsers may have heard of Freecycle - basically an online servie - kinda like loot, but you dont charge for it.

Problem is - no-one wants CRT monitors these days - so my mate who had 2 17" monitors to dispose of found that, well let me paste his email he sent out about it.....

"2 x 17" monitors. Impossible to give away on Freecycle or elsewhere. Left on the pavement, gone in 20 minutes."

So Chavcycle them.

And as for Hard Disks - keep em all forever and when they break - 12lb Sledghammer.

Or screwdiver - take the platters out - make even better coasters than CD's - or because of the metal they are made of, make good mirrored wind-chimes -

David
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Old 20-08-06, 04:06 PM   #22
21QUEST
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Default Re: Chavcyle it

Quote:
Originally Posted by SoulKiss
......"2 x 17" monitors. Impossible to give away on Freecycle or elsewhere. Left on the pavement, gone in 20 minutes." .....

So Chavcycle them.

David
Beautuful word that. Never heard of it

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Blue, mate, having read a lot of your stuff I'd say 'in your head' is unknown territory for most of us
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Old 21-08-06, 01:00 PM   #23
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Quote:
Originally Posted by lynw
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Originally Posted by rpwoodman
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Originally Posted by lynw
It IS impossible for even the best forensic software to retrieve from that. Simply formatting the drive once is not.
I'm not sure that is correct.

As I understand it, for long-standing data, the flux will create a shadow, so my changing the alignment of the heads, the data can be read.
To do this, you need to take the drive apart (and remember that a particle of smoke dust can knock a head out of alignment), so it's hardly trivial, and undoubtedly expensive. More than your average eBay'er would be willing to spend.

I thought I had an article about this bookmarked, but I can't find it. I think if you read the article about Spinrite 6 on Steve Gibsons website it may make references to this.

I've never tried this, so I don't know if it's true - it could be complete b*llox. It sounds feasible to me tho.
I know what youre talking about but the technology required to do this is stuff you would have in a university advanced physics lab, its not stuff you could just go to dixons and get the gadget and do. :P

And its not entirely a 100% guarantee to get the right reading either.

Ethariel, interesting to know that. Things obviously moving on since I did this. Interested to know how this works and why 7 wipes is no longer safe.
7 formats never was enough to remove the ghosting. It was only ever considered "secure enough." IMO, it still is. However, IMO, just 'low level' format the drive & (as you said) write 1 char to every sector of the disk (although, depending on the sector size, 1 char may not fill 1 sector - but in principal all good).

A few years ago I was working for a company that was being paid to investigate the possible affect of TEMPEST attacks (the art of viewing a CRT, from miles away). So long as you have a 'clean room' and the right hardware (which can actually be purchased from B&Q), it's actually pretty trivial to get data from an old hard drive.

For those paranoid enough, your local breakers yard should be sufficient. They have a nice way of picking cars up (electro-magnet) and dropping them in a crusher. Minimal effort, all data erased beyond the "7 wipes" principal, quite a lot of the shadowing goes as well, and should anyone really want the data, they have to make the discs flat again so they balance in a rotating vacuum. But then, if you need to resort to this kind of tactic, I'd be expecting a knock on the door in the next few mins.

(I do know a guy that has a nice setup. He's designed & built what is esentially a microwave in the doorframe. If you don't open the door & press the right button (hidden obviously), the microwave comes on. It's not enough to cook you, but it is enough to generate a small EMP.)
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Old 21-08-06, 01:17 PM   #24
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Baph,

You sound like the sort of guy I bumped into on a Sybase course many years back. At the beginning of the first day, the instructor sent a list round asking everyone to write their name down, the name of their company, and their email address. These 2 guys (who always seemed to disappear at break time) just wrote "Government" for their company name. The instructor noticed this and said "What government department - can you be a bit more specific?" (just wondering I guess). They said "No, just the government." It was rather funny really.

I bet those two would have got data back from this drive once they've finished their daily Sudoku!

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Old 21-08-06, 01:30 PM   #25
Baph
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Originally Posted by rpwoodman
Baph,

You sound like the sort of guy I bumped into on a Sybase course many years back. At the beginning of the first day, the instructor sent a list round asking everyone to write their name down, the name of their company, and their email address. These 2 guys (who always seemed to disappear at break time) just wrote "Government" for their company name. The instructor noticed this and said "What government department - can you be a bit more specific?" (just wondering I guess). They said "No, just the government." It was rather funny really.

I bet those two would have got data back from this drive once they've finished their daily Sudoku!

Funnily enough, not that far from it. I used to work quite a lot with cryptography & telemetry. I have also advised a collegue in the past about what he should do with audio recording equipment after it was taken somewhere it shouldn't be. He tried to forward a copy to me, but lets just say that I knew the source, and just refused to accept anything to do with it (other than telling him how to 'safely' dispose of hardware).

My job now is nowhere near the security level I've had in the past, but even now, my manager has left the armed services after being involved in communications (as he puts it 'behind the enemy lines'), and isn't able to name the specific section of the forces he was in. All I know, is that he was mainly developing photographs in tents, in the pitch black, and that he trained as a sparky.

Anyway, this is starting to get de-railed lol.
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