The Tao of Open Source Intelligence Audible Audiobook
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The article leads in with
It finally happened. Today, I added the three hundred thousandth (yes, 300,000th) spamtrap address to my greytrapping setup, for the most part fished out of incoming traffic here, for spammers to consume.
and is liberally sprinkled with references to other relevant material.
The article is also available in a trackerless (aside from the server’s ordinarily rotated log) version.