Re: Attempts to poison bayesian systems
On Tue, Dec 23, 2003 at 01:25:30PM +0000, Dale Amon wrote:
> I've been noticing loads of mails like this lately:
>
> Date: Sun, 21 Dec 2003 16:25:34 +0500
> From: "Joseph Jenkins" <qyzeji@canada.com>
> Subject: Re: MIT, rest in peace!
> To: admin@vnl.com
> X-Mailer: mPOP Web-Mail 2.19
>
> emery atrocious larval drippy elate incontrollable raster anglicanism
> checkerberry feed sit ajar saturable decathlon
> already climate inhibition pagoda narcissus expository toni
>
> I can only assume someone out there is trying to attack
> bayesian systems by loading them up with all sorts of
> normal words so that good mail gets false positives, thus
> breaking the systems.
>
> I presume others are seeing this?
Yup. Thousands each day. I've gone through and used an exim system filter
to at least block the email from being delivered (there's usually a
link to a site in the email). I'm not sure what to do about the
bayesian poisoning of Mailscanner.
Tim
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