There are many forms of bitcoin wallets, including PC or mobile wallet clients, online web wallets, and even small notebooks (paper wallets) or brains (brain wallets) that record bitcoin private keys. You can choose the wallet that suits you according to your own needs.

Bitcoin wallets can be divided into cold wallets and hot wallets according to the storage mode of private keys.

0 1. A cold wallet refers to a wallet whose private key cannot be accessed by the network.

Cold wallets often rely on "cold" devices to ensure the security of bitcoin private keys, such as computers, mobile phones, and small notebooks with private key addresses. Cold wallet avoids the risk of being stolen by hackers, but it may face physical security risks, such as computer loss and damage.

02. A hot wallet refers to a wallet where the Internet can buy and access your private key.

Popular wallets are often in the form of online wallets. When using hot wallet, it is best to set different passwords on different platforms and turn on secondary authentication to ensure the safety of your assets.

The wallet is actually a "management tool for private keys, addresses and blockchain data".