“They will literally leave bundles of cash somewhere for you to pick up,” said Dr Tom Robinson, chief scientist and co-founder of Elliptic, a group that tracks and analyses crypto transactions. “They bury it underground or hide it behind a bush, and they’ll tell you the coordinates. There’s a whole profession.”  The Russian-language Hydra offers plenty of other ways for criminals to cash out of cryptocurrencies, including exchanging bitcoin for gift vouchers, prepaid debit cards or iTunes vouchers, for example.

https://www.ft.com/content/4169ea4b-d6d7-4a2e-bc91-480550c2f539