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An Israeli buys Bitcoins, at the cryptocurrency 'Bitcoin Change' shop in the Israeli city of Tel Aviv on January 17, 2018. At the end of 2017 Israel Securities Authority said it was moving to ban trading in cryptocurrency-based companies on the Tel Aviv market until transactions involving digital coins are legally regulated. / AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/Getty Images)

An Israeli buys Bitcoins, at the cryptocurrency 'Bitcoin Change' shop in the Israeli city of Tel Aviv on January 17, 2018.
At the end of 2017 Israel Securities Authority said it was moving to ban trading in cryptocurrency-based companies on the Tel Aviv market until transactions involving digital coins are legally regulated. / AFP PHOTO / JACK GUEZ        (Photo credit should read JACK GUEZ/AFP/Getty Images)