Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase will not be similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability towards your wallet that works along with your seed phrase to encrypt and safeguard your wallet. A https://opensocialfactory.com/story19931482/bip39-words-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained