Cryptocurrencies are generally constructed the usage of blockchain technology. Blockchain describes the manner transactions are recorded into "blocks" and time stamped. It's a fairly complicated, technical technique, however the result is a virtual ledger of cryptocurrency transactions it is difficult for hackers to tamper with. In addition, transactions require a -component authentication manner. For instance, you might be asked to enter a username and password to begin a transaction. Then, you would possibly need to input an authentication code it truly is sent through text on your private cell phone.