Security Basics mailing list archives
Re: Interesting One
From: "Carol Stone" <carol () carolstone com>
Date: Tue, 29 Oct 2002 13:57:45 -0700
I don't know much about this, but yesterday I read in one of the later chapters of Bruce Schneier's book, "Secrets and Lies," (link to amazon follows) that over-writing data on a disk does *not* completely obliterate it, it just makes it a lot more difficult to recover with each over-write. I believe he said just how many re-writes were still recoverable was a secret one of our governmental organizations wasn't about to give up. I'll look at my book later when I have it in my hands and see if I can't find part and post a pointer to *his* reference. -carol http://www.amazon.com/exec/obidos/tg/detail/- /0471253111/qid=1035924654/sr=8-3/ref=sr_8_3/104-4454644-5987143? v=glance&n=507846
Greetings Folks, I had an interesting conversation today with someone from FAST (Federation Against Software Theft) They pretend not to be a snitch wing of the
BSA.
Anyway, to get to the point, the guy that came to see me said that
their
forensics guys could read data off a hard drive that had been written over up to thirty times. I find this very hard to believe and told him I thought he was mistaken but the guy was adamant that it could be done. My question is, does anyone have any views on this, or, can anyone point me to a source of information where I can get the facts on exactly how much data can
be
retrieved off a hard drive and under what conditions etc etc. Thanks Dave Adams This message (and any associated files) is intended only for the use of the individual or entity to which it is addressed and may contain information that is confidential, subject to copyright or constitutes a trade secret. If you are not the intended recipient you are hereby notified that any dissemination, copying or distribution of this message, or files associated with this message, is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and deleting it from your computer. Messages sent to and from John Crowley (Maidstone) Ltd may be monitored. Internet communications cannot be guaranteed to be secure or error-
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Current thread:
- RE: Interesting One reading a 30x over-written drive, (continued)
- RE: Interesting One reading a 30x over-written drive Tim - IBL (Oct 30)
- RE: Interesting One Carl Grayson (Oct 30)
- Re: Interesting One Meritt James (Oct 30)
- Re: Interesting One John Orr (Oct 29)
- Re: Interesting One Brad (Oct 30)
- RE: Interesting One Dan Darden (Oct 30)
- Re: Interesting One John Dow (Oct 30)
- RE: Interesting One Mark Ribbans (Oct 31)
- Re: Interesting One Jac (Oct 31)
- RE: Interesting One David (Oct 31)
- Re: Interesting One Carol Stone (Oct 29)
- RE: Interesting One Greg van der Gaast (Oct 30)
- Re: Interesting One James Taylor (Oct 30)
- Re: Interesting One ATD (Oct 31)
- RE: Interesting One Dozal, Tim (Oct 29)
- RE: Interesting One Tom Matthews (Oct 30)
- RE: Interesting One Paul Carroll (Oct 30)
- Basic Question only Christopher Rea (Oct 31)
- RE: Interesting One David (Oct 31)
- Re: Interesting One Jack Crone (Oct 30)
- RE: Interesting One Martijn Dunnebier (Oct 30)
(Thread continues...)