A method of securing cryptocurrencies or digital assets offline to protect them from unauthorized access, cyber hacks, and other forms of online vulnerabilities. This is typically achieved by storing the private keys, which are necessary to access and manage the digital assets, on a device that is not connected to the internet. Common forms of cold storage include hardware wallets, paper wallets, and offline computers. By keeping these keys offline, cold storage provides a high level of security, making it an essential practice for safeguarding significant amounts of digital assets.