On Tue, Aug 29, 2023 at 11:10 AM Dave Crocker <d...@dcrocker.net> wrote:
> Two thoughts: > > 1. If the substance of the message should fail a quality assessment, > why does it pass at the outbound (sending) site? > 2. If the problem is reasonable content, but sent to many unintended > (or, rather, undeclared) recipients, then the only characteristic of note > is the fact of multiple transmissions. So I'd guess it is only a real-time > network of receivers, working in /very/ close coordination, to detect and > deal with the attack. (it's not difficult to imagine scattered > retransmissions, over time, to hide the coordination. Sort of a spread > spectrum transmission style...) > > For (1), I presume the outbound site did not make a quality assessment that identified the message as "likely to be replayed". Does this reduce to the "don't sign spam" argument? -MSK
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