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Network Security Security-Basics
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Re: Wireless security question

Subject: Re: Wireless security question
Date: 24 Dec 2004 14:55:50 -0000
In-Reply-To: <20041222165710.54598.qmail@web20426.mail.yahoo.com>


Hi gang!

Hello!

Here is a question for you...

We have a secure network with no wireless
connections whatsoever.

Thank goodness. :)

One of our laptop came in with credentials to log
on to the network through the Ethernet cable BUT
the person had just added a wireless card to his
laptop.

This situation actually came up and the person
could see external wireless networks (from other
companies around our building) and access
Internet through there. Yeah I know they're
stupid, but it's the real world!

Yup.  Sometimes people just don't care how insecure things are, as long as it 
works, and is convenient for them.

This seems like a potential threat for taking our
data out the back door. 
Copy files accessed through our network to
another network and voil`! No trace at all of the
mischief.

I would be more concerned with mass storage, like others said.  But you make a 
valid point.  Your employee might not know that someone is on his computer.  
Regardless, this does creat a point of access into your network.  If  company 
policy says it's a no no.. then you may want to try a few of these options.

1. If your running Windows XP, and you can manage via group policy, why not 
simply disable the "Wireless Zero Configuration" service.  Hopefully this user 
isn't running as an admin on the local machine.  

2.  You can install a software based firewall (yuk imo)

3.  Create multiple hardware profiles.  One labeled Home, and the other Work.  
While at Work disable his wireless card.  While at Home disable his lan card.  
More of a patch, but it would stop him from booting into Home mode by accident 
at work.

Many more options available.  Before I keep assuming your running XP, I'll wait 
to see.

We monitor internet access and block non-company
Email (Yahoo, Hotmail etc.).

Suggestions?

Thanks and Happy Holidays!

Marty!


__________________________________________________________
Lhche-vitrine ou lhche-icran ?
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