Marq was a very accomplished IT professional, who only lurked on darknet marketplaces because he found them interesting. But after losing his job and a close friend, the temptation to sell a trove of sensitive data was just too great.

Visit https://darknetdiaries.com/episode/108/ for a list of sources, full transcripts, and to listen to all episodes.
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https://www.youtube.com/watch?v=O2N2raxcM-Q