Bitcoin exchange chief arrested amid new questions about Mt Gox theft

Greek police have arrested one of the central figures in the Bitcoin exchange BTC-e on suspicion of money laundering. Russian citizen Alexander Vinnik was arrested in Greece at the request of US law enforcement, according to a Reuters report.The BTC-e exchange has long been a favorite of criminals, as its headquarters in Russia places it outside the reach of US and European law enforcement. Recent Google research found that 95 percent of ransomware cash-outs occurred through the BTC-e exchange,