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Now Playing: 4-1-13 Marketplace Tech: Is Bitcoin Legit?

Amid the banking crisis in Cyprus, an online-only currency called Bitcoin is getting new attention. Some argue it could be used as a safe-haven for people worried about have their deposits taxed in Cypriot banks. Evidence that people turned to Bitcoins amid the Cyprus mess is actually quite slim, although one company announced last week it wants to create the first Bitcoin ATM and to do it in Cyprus. Bitcoins haven't attracted much attention from regulators, until now. U.S. authorities have new guidelines, and that has rankled some Bitcoin advocates.