Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability towards your wallet that works together with your seed phrase to encrypt and defend your wallet. https://artybookmarks.com/story18897824/bip-39-https-linktr-ee-bip39-the-fact-about-bip-39-that-no-one-is-suggesting