问题 3: What is the difference between hot wallets and cold wallets?
Hot wallets are wallets that are connected to the internet, enabling quick transactions and easy access. However, because they are online, they are more susceptible to hacks and online fraud. Cold wallets, on the other hand, are offline and provide an extra layer of security, making them ideal for long-term storage of cryptocurrency. The choice between hot and cold wallets generally depends on the user's needs for security versus accessibility.