Desktop wallet :

Bitcoin Core is a typical example of desktop wallets. When downloading the installation package from the official website, you must carefully identify the official website logo to avoid downloading malicious tampering versions. The installation process is relatively simple, just follow the prompts. After the installation is completed, the initial operation will face blockchain data synchronization, which is a time-consuming process because you need to download a large amount of historical transaction data and you need to wait patiently. Its advantage is that it has absolute control over private keys, is highly privacy-friendly, and is suitable for users who focus on security and do not frequently operate Bitcoin. However, it is necessary to manually back up wallet data to external storage devices regularly to prevent data loss such as computer hard disk failure.

Mobile wallet :

Blockchain, Electrum Mobile, etc. can be searched and downloaded in major mobile app stores. After installing it for the first time, you need to set a high-strength password. The password should include letters, numbers and special characters as long as possible, and the length is more than 8 digits. Some mobile phone wallets support fingerprint unlocking, which is convenient and fast and has a high security factor. Mobile wallets are convenient for viewing Bitcoin assets and conducting transactions anytime, anywhere. However, once the phone is lost and if sufficient security protection is not enabled, the wallet is at risk of being stolen. Therefore, it is necessary to enable two-factor authentication (such as SMS verification code + password). You can also set the face or fingerprint of the wallet application to re-enter the password at a certain interval after unlocking it, further improving security.

Web wallet :

Take MyEtherWallet as an example, accessed through a browser. When entering the URL, you must ensure that the URL is correct. You can verify the URL information through official channels to prevent being misled by phishing websites. The web wallet does not need to be installed, it can be used as long as it has a network connection and a browser, which is convenient for quick login operation on different devices. However, its security is relatively weak, and the private key is stored on the web page and is vulnerable to cyber attacks. It is recommended to use it only in a network environment that you are familiar with and secure, such as a home network, and you need to modify your password regularly, and the password setting is also complicated. At the same time, don't store a lot of bitcoin in your web wallet just in case.

Search for "Blockchain" in the mobile app store, identify the official icon, click Download and wait for the installation to be completed.

Open the Blockchain app, find the "Create a new wallet" option in the initial interface and click.

Then enter the password setting process and set a complex and easy-to-memorize password, which meets the requirements of containing letters, upper and lowercase letters, numbers, special characters and length of more than 8 digits. After the setting is completed, the system will require the password to be confirmed again.

The password is confirmed correctly, and the wallet will generate mnemonic words, which are phrases composed of 12 or 24 words. At this time, be sure to hold a pen and paper and record it accurately in order. This is the key information for restoring your wallet. It is strictly forbidden to transmit mnemonic words through the Internet, such as sending them to email, WeChat, etc., and do not take screenshots and save them in mobile phone albums and other places that may be hacked.

After recording the mnemonic words, the application will randomly select several mnemonic words and ask you to confirm again in order. After confirming that the wallet is successfully created.

Enter the main wallet interface, find the "Receive" option in the interface and click to enter. The long string composed of numbers and letters displayed here is your Bitcoin wallet address. You can click the copy icon next to the address to facilitate sending the address to others for receiving Bitcoin transfers.

Mnemonic word backup :

Just like creating mnemonics generated by Blockchain wallets, it is the most commonly used backup method. The mnemonics are neatly copied on paper, and several copies are copied, and stored in different safe places, such as hidden places in different rooms at home, office filing cabinets, etc. The storage area should be dry, fire-proof and insect-proof to ensure that the paper is well preserved for a long time. Regularly check whether the mnemonic paper is damaged and whether the handwriting is clear.

Wallet file backup :

For desktop wallet Bitcoin Core, wallet data is stored in a specific file. On Windows systems, it is usually in the AppData folder in the user directory; on Mac systems, it is in the Library/Application Support folder. Find the folder where the wallet file is located and copy the entire folder to external storage devices such as mobile hard disks and USB disks. After the backup is completed, connect the backup device to the computer regularly, open the backup file and check whether it can be read normally, and ensure that the backup is valid. When restoring the wallet, copy the backup file back to its original location, or follow the recovery operation instructions of the wallet software.