Bip39 Words. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of safety for your wallet that works alongside your seed phrase to encrypt and secure your wallet. A PIN, https://socialtechnet.com/story4086892/bip39-passphrase-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic