How to make a 100% safe cold wallet?

Recently, there have been many security incidents. Everyone should pay attention to the custody of their assets. Liu Jiaolian's popular science article is good. He shares the method of making a cold wallet with everyone!

1. Use a clean or new computer, preferably a Mac.

2. Open the generator website http://t.cn/RhFlDDU , randomly slide the mouse until the collection progress bar reaches 100%, and disconnect from the Internet.

3. Write the generated Bitcoin address and private key on the notebook with a pen, copy it twice for backup, and pay attention to distinguish between uppercase and lowercase.

4. Click "Wallet Details" and enter the private key you just copied into the generator that is disconnected from the Internet for verification to ensure that the restored address is exactly the same as the copied address.

5. Close the webpage and clear the browser cache.

6. Save the two backups you just copied, preferably in different places for safekeeping.

Friends in need can refer to the actual operation. It is very simple. You only need a pen and a notebook.

The principle is similar to copying and pasting the private key into a txt file and then putting it on the hard disk, but it is stored in an offline webpage + physical form, which is safer than network storage.

This completes the creation of a Bitcoin cold wallet. The wallet you own is not connected to the Internet or electricity. As long as you do not operate it yourself, you will not use this private key. The only risk is that the paper is lost or leaked by others.