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List:       firewalls-gc
Subject:    RE: Re: Virus Scanner
From:       Russ <Russ.Cooper () RC ! on ! ca>
Date:       1997-07-28 11:04:08
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As the use of encrypted channels (mail/ssl/vpn) become more prevalent,
aren't Firewall-based virus scanners becoming less effective? Assuming
that a Firewall-based virus scanner is going to protect you assumes it
can see everything as it really appears, not always the case. Altavista
Tunnel decapsulates beyond the Firewall, S/MIME and PGP don't make
contents visible until read by the client, and SSL extends all the way
to the client also. IPSEC-based tunnels would be similar.

Cheers,
Russ
R.C. Consulting, Inc. - NT/Internet Security
owner of the NTBugTraq mailing list:
http://ntbugtraq.rc.on.ca/index.html

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