[extropy-chat] META: Anti-Bayesian spam
eugen at leitl.org
Wed Dec 6 14:28:39 UTC 2006
On Wed, Dec 06, 2006 at 09:01:58AM -0500, MB wrote:
> > Well, the following got through the gmail filters this morning. I've
> > converted it to text and removed the GIF attachment (which was
You could have blocked anything with a .gif|.png|.jpeg attachment
at MTA level, or at least assign that a higher spam score. Which
brings us back to the old evergreen: people who years ago claimed
rich content was safe and had no unanticipated side effects now
get a reality check.
It is still possible to generate personalized spam by AI, but it's
much harder, and you still can penalize by a realtime list of the
origin (address diversity of all zombies on this planet is low).
> > presumably the real message). Interesting how it seems to be
> > generating relatively coherent text. I wonder if they are picking out
> > phrases from popular news items or simply generating semi-proper text
> > using phrases that score low on Bayesian filtering methods.
The idea is to poison Bayesian spam filters. It's working. The only
reliable measure is to penalize by origin.
> > At any rate the battle continues...
> I have occasionally checked out what my spam says, and I'm amazed. Sometimes I
> wonder if the spammers are reading my email, or at least the subject lines. I find
There's a big problem with reflexively shedding a mature communication medium
for its less mature but bearing a lower parasite load alternatives: abuse
resistance has to be designed-in, or evolved slowly. IM and VoIP don't have
any abuse immunity whatsoever, and VoIP spam is like clubbing baby seals.
> keywords that are frequently used on my various email lists - and names, not
> necessarily ordinary names like Jim or Bob.
> It's rather uncanny and somewhat unsettling. I am very greateful to have a filter!
> And I'm becomming more impressed with it as time goes on.
> No, I never ever look at any of the attachments! :)))
It would be even better if you didn't even receive the attachments.
And it would be even better if your MTA was a veritable tarbaby for
anyone with the temerity to spam you.
Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
ICBM: 48.07100, 11.36820 http://www.ativel.com
8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 191 bytes
Desc: Digital signature
More information about the extropy-chat