Bip39 Mnemonic. Is passphrase similar to PIN? No, a passphrase is not the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of protection towards your wallet that works along with your seed phrase to encrypt and secure your wallet. A PIN, on https://getsocialsource.com/story4529533/bip39-generator-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase