The lack of a central authority may make cryptocurrencies more secure. "It can be hack-evidence mainly because there's no 1 central level of failure," describes David Donovan, executive vice chairman at Publicis Sapient. Εάν δεν είσαι φίλος του γραπτού λόγου τότε μπορείς να δεις το Η λέξη κρυπτονόμισμα είναι ένας https://edwinb714ryf6.wikiconversation.com/user