On Sat, 2004-04-10 at 01:37, Michael D. Weisner wrote:

> I have yet to tackle the HIPAA concerns officially, although the VPN is fairly
> secure and the home system is password protected and physically locked away.

You realise of course that unless you use an encrypted filesystem, the
"password protection" on any machine (Windows, Linux, whatever) is no
protection at all if someone has physical access to the machine, or more
precisely, its hard disc eg if the machine is stolen from your home
(burglaries never happen in your neighbourhood?). By simply rebooting
with a CD or floppy disc in "rescue mode" you can completely bypass 
Windows or Linux (or any other OS) security - no special tools or skills
needed. Just Google for "lost root password" or similar. Thus you
definitely need to weigh up the risk of such loss of physical control
over the machine versus the potential consequences.

Windows NT/2k/XP provides an encrypted filesystem which is very easy to
use and reasonably secure if you take the extra precaution of setting
some registry keys which cause the Windows SAM (the central security
repository) to be encrypted with a password which you need to supply at
the console at boot time. The default in Windows of not encrypting the
SAM still leaves the machine vulnerable even if you use the encrypting
filesystem - but if you use a boot time password, everything in the
encrypting filesystem is pretty safe from someone with physical access
to the machine but who doesn't know any passwords. Google the Microsoft
help pages for more details. Note that Microsoft disables the ability to
use the encrypting filesystem in various versions of Windows - you may
need a server version.

There are various ways of implementing encrypting filesystems under
Linux, but all involve supply of a boot time password.

-- 

Tim C

PGP/GnuPG Key 1024D/EAF993D0 available from keyservers everywhere
or at http://members.optushome.com.au/tchur/pubkey.asc
Key fingerprint = 8C22 BF76 33BA B3B5 1D5B  EB37 7891 46A9 EAF9 93D0


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