Speaking of cold wallets, I think this knowledge is still relatively deep, and I have been paying attention to products recently. According to the authoritative answer of Baidu Encyclopedia, it is like this:

Cold wallet refers to the bitcoin storage technology developed by an information technology company that provides a secure storage solution for blockchain digital assets. The cold wallet integrates the functions of digital currency storage, multiple transaction password setting, publishing the latest market and information, and providing hard fork solutions. And using two-dimensional code communication, so that the private key never touches the net, which can effectively prevent hackers from stealing.

Hardware cold wallet has many benefits.

The storage function of hardware cold wallet is similar to that of hard disk, but the password needs to be paid when trading, and a strong seed password is randomly generated to obtain the private key and address. Every transaction has a digital signature and remarks, which can be checked at any time; The online APP can query the latest market and information online, disclose transparent information, automatically detect transaction confirmation, and never touch the private key, which is safe and worry-free.

Cold wallet