Genesis had a user-friendly English-language interface
"It was a very sophisticated website, very easy to use, with a wiki [website that can be modified or contributed to by users] telling you how to use it, and accessible on the open web and the dark web," Mr Jones said.
"So you didn't need to be a sophisticated cyber actor to get into this. You just needed to be able to use a search engine, and then you could start committing crime."
Depending on how much data was available, a victim's information would sell for less than $1, or for hundreds of dollars.