A cryptocurrency wallet is a digital tool that allows users to store, send, and receive cryptocurrencies like Bitcoin and Ethereum. Unlike a traditional wallet, it doesn't hold physical money but instead keeps track of your digital assets through cryptographic keys. These keys are essential for accessing and managing your cryptocurrencies securely. There are different types of cryptocurrency wallets, including hardware wallets, software wallets, and paper wallets. Hardware wallets are physical devices that store your keys offline, while software wallets are applications that can be installed on computers or smartphones. Each type offers varying levels of security and convenience, catering to different user needs.