Bip39 Seed. Is passphrase the same as PIN? No, a passphrase is not the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of safety for your wallet that actually works along with your seed phrase to encrypt and shield your wallet. https://sociallweb.com/story4631397/bip39-wallets-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic