Cryptocurrency is a form of payment that can be exchanged online for goods and services. Think of them as you would arcade tokens or casino chips. You’ll need to exchange real currency for the cryptocurrency to access the good or service. According to CoinMarketCap.com, a market research website, there are currently more than 13,000 cryptocurrencies. Cryptocurrencies work using a technology called blockchain. Blockchain is a decentralized technology spread across many computers that manages and records transactions. Part of the appeal of this technology is its security.