l i n u x - u s e r s - g r o u p - o f - d a v i s
Next Meeting:
July 7: Social gathering
Next Installfest:
Latest News:
Jun. 14: June LUGOD meeting cancelled
Page last updated:
2012 May 11 15:32

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] [Lug-nuts] Secure Wiping hard drives
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] [Lug-nuts] Secure Wiping hard drives

Anything requiring power tools, sledgehammers, drills, or small bits flying off is vetoed by the company HR due to safety.  Shotgun is *WAY* out.  (Except for maybe the Texas office).

Vinegar?  Would that really work?  I imagine HR would say no the hydrogen waste gas too, if not the smell would disrupt the office workers in the next room. 

DBAN takes 2 to 3 hours but is thorough. 

And it looks like repartitioning is about as secure as putting a yellow sticker on it that says "erased".


On 11 May 2012 13:54, Mikies Runs Baal <mikiesrunsbaal.sec@sbcglobal.net> wrote:
Government standards for a security wipe is a rewrite done 7 times. Many manufacturers have a Low-Level Format utility that can be used. However, some intelligent drives actually block a LLF, but FALSELY report as completed!

Dismantling a drive only requires a reassemble to regain access to any recoverable data.

The hammer or shotgun technique does not destroy data. So, any chunks large enough can be used to recover partial files.

Since, data platters are made of metallic alloys like aluminum, they are highly susceptible to irrecoverable damage by acids. Drill multiple holes in the drive case, and drop in a bucket of vinegar, and forget. BTW, no smoking. This method generates lots of hydrogen gas which s highly explosive. Best to use in area with lots of ventilation.



On 5/11/2012 9:32 AM, Darth Borehd wrote:
We need a fast way to securely wipe hard drives.

Is there really any way to recover data after doing 1 pass writing zeros to every sector? (This is what we are doing now using the free version of Active Killbits, but it takes over an hour per hard drive.)

If we repartition and reformat Windows NTFS drives as Ext3, is there any way to recover data from them?  (We found this method is faster, but are not sure if it is as secure as the above.)

The company will not pay for a degausser.

Safety requirements prevent us from doing physical destruction of the "sledge-o-matic" variety.

We use a computer recycler, but do not trust them 100% to destroy our data.  We know for a fact that equipment they get from us sit unguarded in a warehouse for months before destruction.

Interested in hearing opinions on this. 

Lug-nuts mailing list

Lug-nuts mailing list

vox-tech mailing list

LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
Appahost Applications
For a significant contribution towards our projector, and a generous donation to allow us to continue meeting at the Davis Library.