Re: [tor-relays] Jerk spammers on tor-relays

[Andreas Krey <a.krey@xxxxxx>]

On Fri, 21 Sep 2018 16:57:29 +0000, Ralph Seichter wrote:
...
> Imagine an address A subscribed to this mailing list in a read-only
> fashion (a.k.a. "lurker"). A uses list posts as triggers to send spam
> from address B, which does not even need to be subscribed. How would
> the list admins ever be able to connect A to B?

Traffic modulation and analysis. Unfortunately that requires that every spam
addressee to respond quickly, and that mails to the subscribers are either selectively
suppressed or greatly delayed (both not very acceptable), to correlate resulting
spams with list adressees.

Don't want to enumerate obvious countermeasures by spammer here - at the end
it still can just resubscribe with a different address.

Probably only acceptably doable by only using postings made by agreeing
'spamtrap' posters, and letting the mailing list randomly delay only
those postings.

- Andreas

-- 
"Totally trivial. Famous last words."
From: Linus Torvalds <torvalds@*.org>
Date: Fri, 22 Jan 2010 07:29:21 -0800
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