Cryptocurrency comes under many names. You have probably read about some of the most popular types of cryptocurrencies such as Bitcoin, Litecoin, and Ethereum. Cryptocurrencies are increasingly popular alternatives for online payments. Before converting real dollars, euros, pounds, or other traditional currencies into ₿ (the symbol for Bitcoin, the most popular cryptocurrency), you should understand what cryptocurrencies are, what the risks are in using cryptocurrencies, and how to protect your investment.