Bip39 Ian Coleman. Is passphrase the same as PIN? No, a passphrase isn't the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of stability to the wallet that actually works together with your seed phrase to encrypt and defend your wallet. https://easiestbookmarks.com/story19101188/bip39-wallets-https-linktr-ee-bip39-top-guidelines-of-bip39-mnemonic