I think that you may have lost the battle before you even got started.
If you are going to be securing Visa information than you should be more
concerned with the security of the total system than the O/S that the
system runs on. Don't get me wrong there are some Windows NT based
products hitting the market that look good (I've used and done some
testing with EagleNT) but there's only 2 that have been released (I think
that's really all). You may want to look at something that's been around
for awhile and has a track record of a couple of years.
If your worried about sniffers some firewalls have encryption
capabilities that can handle workstation to firewall. Take a look at
V-One and Raptor.
Be careful. Look for something that meets your needs not just some
arbitrary wants. What if there aren't any NT firewalls that have a long
track record for handling this type of security? Will you still get an
My recommendation is to find a reputable consultant that has done this
type of thing (many times nit just once or twice) and work with them to
design a good security model. Getting Brent Chapman's book on Building
Internet Firewalls and reading some white papers by Marcus Ranum at
www.v-one.com wouldn't hurt either.
>From: Jason Manaigre <ratak @
>Date: Mon, 15 Apr 1996 16:16:26 -0500
>Subject: FireWalls and WinNT?
> I got a few questions for you guys regarding WinNT and
> First of all, we are starting a company one where Visa numbers
>other dangerous informations packets
>are going to be floating around...
> And to prevent sniffers and whatever else hackers come up with
>days, we want to implement the
>best Firewall available for WinNT...
> Price isn't much of an issue, although I hear some Systems run
>he 100 000$ mark?
> Somewhat steep for a Firewall...
> Any ideas?
> More questions to come I'm sure, for now that's it....
Perigee Communications Inc.
"Networking and Beyond"
(Formally known as DCC)