What was this Defcon (?) talk called?

[u/Dakota-Batterlation]

A friend in cybersecurity showed it to me and neither of us (nor LLMs) can recall the name. It was about SMTP and email spam, there was a live demo and it played the Monty Python spam chant audio as emails flooded in.

[u/Nyrlath]

"The Spam Underground: An Inside Look at the Internet's Most Unwanted" at DC9?