Bip39 Mnemonic Generator. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of security towards your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. A PIN, https://binksites.com/story8806929/bip39-mnemonic-https-linktr-ee-bip39-a-review-of-bip39-words