A lot of cryptocurrency are now emerging and the originals are bitcoin. I can consider it both an asset and a currency. An asset because as the value rises you are getting bigger conversions compared to how much you bought it as start-up. Currency because more and more merchants are accepting it as form of payment online. It is indeed good to invest on cryptocurrencies. One of the best is Ethereum. It has proven both great in security and value. You can check out more of it's information at www.propthereum.io