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The lack of the central authority may make cryptocurrencies more secure. "It really is hack-proof due to the fact there isn't any one central position of failure," explains David Donovan, govt vice chairman at Publicis Sapient.Ενώ ξεκίνησε με σκοπό να εξυπηρετήσει ως ένα νέο μέσο ανταλλαγής αξ