MagicPoint presentation foils

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Page 17: Defences against trad. attacks

The return path is usually not included in archives of email on the
web because it's overwritten by mailing list managers before it hits
the archive. But this is not guaranteed -- there are things like the
Debian bug tracking system which do expose return paths.

And in any case there's no defence against a recipient being 0wned.

Several defences against replay so we'll cover them later.

When it comes to dictionary attacks we have a strong defence, though
we must be sure it is sufficiently strong to make other attacks more
enticing. I don't know how strong that is, which is why I'm here...