Enlarge / Courts in Thessaloniki, Greece, rules extradition of the Russian bitcoin master suspect Alexander Vinnik to France after the French authorities request. (credit: Nicolas Economou/NurPhoto via Getty Images) A Greek court in Thessaloniki ruled last week that the creator of a shady bitcoin exchange under investigation by American authorities will be extradited to France rather than to the United States or to his native Russia. Last summer, federal authorities identified Alexander Vinnik as a central figure in the massive bitcoin theft that was a major factor in the downfall of Mt.