Great Circle Associates Firewalls
(May 1995)
 

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Subject: Re: Monitoring outgoing traffi
From: riordan @ math . umn . edu
Date: Tue, 16 May 1995 21:02:10 -0500
To: firewalls @ greatcircle . com
Reply-to: riordan @ geom . umn . edu

Ron DuFresne says:

> A company ploicy that outlines how sensitive data is to be
> transmitted, good user training, and a strongly skilled user help
> desk/support department are the keys to keeping sensitive data out of
> the hands of those it is ment not for...not a 'big-brother' mentality.

I do not know about settings other than academia but.. here it is often
the case sensitive data are often leaked as a result of incorrectly
exported insensitive data.  I supposed that while monitoring out going
traffic for deliberately and maliciously exported data would be
infeasible, that such monitor might reduce the number of accidental
breaches.

As a tangent I tend to worry about imported data.  I do not find many
people really think the methods associated with various data formats.
I do not think that, as examples, that TeX and Postscript are
generally regarded full languages w/ file io that they are. I am
scared even to think about Morris/fingerd type attacks on other data
formats.

No firewall is going to prevent users from accidentally opening holes
by not anticipating the result of some configuration issue.  I do not
think it is even an issue of being naive: how often have we found a
gaping new sendmail hole?

regards,
-- 
james
riordan @
 geom .
 umn .
 edu http://www.math.umn.edu/~riordan


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