Is Bitcoin secure? [VIXswhBnueX]

The collapse of Bitcoin exchange Mt. Gox led some skeptics to wonder if the virtual currency was still a viable form of exchange. It also raised the profile of the controversial cryptocurrency and drew interest from government officials around the world. Duke University Fuqua School of Business (finance professor Campbell Harvey (discusses security issues surrounding Bitcoin. Cam Harvey on Twitter: @camharvey #crypto gutschein #crypto voucher wallet #etf bitcoin kaufen