Saw the thread title & clicked through to post exactly the same :)
It's a great set of episodes. This is without a doubt my favourite podcast. 2nd favourite being Knowledge Fight, which debunks Alex Jones and the nonsense that he spews on a daily basis.
The podcast Darknet Diaries had an episode about the topic recently: https://darknetdiaries.com/episode/98/
(that episode is tied to this book: https://www.amazon.com/gp/product/1635576059/ about the topic)
Also, I like that podcast in general - highly recommend it if you're into infosec stuff!