[95805] in North American Network Operators' Group
Re: Blocking mail from bad places
daemon@ATHENA.MIT.EDU (Ken Simpson)
Wed Apr 4 11:50:35 2007
Date: Wed, 4 Apr 2007 08:46:33 -0700
From: Ken Simpson <ksimpson@mailchannels.com>
To: Thomas Leavitt <thomas@thomasleavitt.org>
Cc: nanog@merit.edu
Reply-To: Ken Simpson <ksimpson@mailchannels.com>
In-Reply-To: <4612E9EB.2060804@thomasleavitt.org>
Errors-To: owner-nanog@merit.edu
--h31gzZEtNLTqOjlF
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
> Some of it is quite sophisticated: full blown "instant" profiles with=20
> fake comments ... the smarter spammers actually make the profile look=20
> real (often lifting material from legit user profiles), and then
> just ...
At the MIT Spam Conference, I was talking to MySpace's anti spam
researcher. He said that they see many profiles that look totally
legit and which have been carefully nurtured for more than six months
-- and then the formally legit profile suddenly becomes the drop site
for a Phishing campaign or other spam repository.
Captchas apparently help quite a bit to stem this kind of problem
because they install a technical barrier that, while not impossible to
break through programatically, at least delays things a bit and
reduces the ROI for the spammer.
Regards,
Ken
--=20
Ken Simpson, CEO
MailChannels Corporation
Reliable Email Delivery (tm)
http://www.mailchannels.com
--h31gzZEtNLTqOjlF
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature
Content-Disposition: inline
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.3 (GNU/Linux)
iD4DBQFGE8hY2YHPr/ypq5QRArnmAKDbCcRRebC/AHspw2z+FEP65FDkZQCYoo3H
mDP02QojjkQoZ6k7+BMkTg==
=OCnO
-----END PGP SIGNATURE-----
--h31gzZEtNLTqOjlF--
