A cryptocurrency is a digital currency that uses cryptography and blockchain to secure its transactions. Cryptocurrencies often exist as a reward for either mining or staking on that particular network. Many cryptocurrencies have a finite supply, which contributes to their attractiveness as a hedge against the inflation that traditional currencies often experience. Each cryptocurrency has different strengths and weaknesses, which is a result of how their networks verify transactions. This is built into the code of each individual blockchain. Some may prioritize speed, cost, and security over decentralization, while others will prefer decentralization and security over speed and cost. These things affect how fast, costly, and secure it is to generate a transaction on the given network.