The President-elect nominee, Janet Yellen, on Tuesday expressed her concern about surged cryptocurrencies.
-> Raising her concerns about the use of cryptocurrencies, Janet suggested that the lawmakers "curtail" the use of Bitcoin amid terrorism.
-> She said that, "cryptocurrency transactions were mainly for illicit financing."
-> Along with that a report published by BitMEX, suggested that there may be a case of double spending with Bitcoin.
-> The concern expressed by Janet Yellen gave sign that lawmakers and regulators could get tough on Bitcoin and Ethereum.