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Article #14424

Re: Protecting against copying from hard disks

#14424
From: Tom Reingold
Date: Sun, 09 Nov 1986 22:06
28 lines
1857 bytes
In article <579@bucsb.bu.edu.UUCP>, madd@bucsb.bu.edu.UUCP (Jim Frost) writes:
<
<How about:
<Go through COMMAND.COM and find the COPY command.  This is really easy to do
<with Norton Utilities.  Make it anything you want, the more bizarre the better.
<This should disable the COPY command within DOS.  Then just write your own,
<naming it anything you want.  This way, you can restrict access better.  It's
<hardly foolproof, but it oughta work to keep at least some people from
<copying things.  This is simple and quick, and should help until some real
<guru comes along with a better way.
<
<                   - Jim Frost * The Madd Hacker -

That's not so hard to thwart unless there are no floppy drives on the
machine.  Someone can walk in with a DOS disk, boot from it, and copy any
file off the hard disk.  I really don't know how you can effectively do
what you want to do, except the following:

Rewrite the file BIOS functions in DOS and rearrange the FAT so that it is
non-standard.  This is very risky and I would not think that it would be
safe, but I guess it's possible.


-- 
Tom Reingold -- Rockefeller Univ, 1230 York Av, NY 10021; (212) 570-7709
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Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!rutgers!seismo!cmcl2!rna!rocky2!reintom
References: <836@ur-tut.UUCP> <579@bucsb.bu.edu.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!rutgers!seismo!cmcl2!rna!rocky2!reintom
From: reintom@rocky2.UUCP (Tom Reingold)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Protecting against copying from hard disks
Message-ID: <278@rocky2.UUCP>
Date: Sun, 9-Nov-86 17:06:54 EST
Article-I.D.: rocky2.278
Posted: Sun Nov  9 17:06:54 1986
Date-Received: Mon, 10-Nov-86 05:03:48 EST
References: <836@ur-tut.UUCP> <579@bucsb.bu.edu.UUCP>
Organization: Rockefeller Univ.,N.Y.C 10021
Lines: 28