A cold wallet is a type of cryptocurrency wallet that stores private keys offline, offering maximum protection against hacking and online threats. Unlike hot wallets, which are connected to the internet, cold wallets operate in isolated environments, making them ideal for long-term crypto storage. Common types include hardware wallets, paper wallets, and air-gapped devices. Cold wallets are especially popular among investors who prioritize security over convenience and want full control of their digital assets. By keeping private keys offline, users reduce the risk of cyberattacks, phishing, and exchange failures. Whether you’re storing Bitcoin, Ethereum, or presale tokens, a cold wallet provides a safe and reliable solution for protecting your cryptocurrency.