Bip39 Seed. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of stability to the wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://opensocialfactory.com/story19508053/bip39-mnemonic-https-linktr-ee-bip39-bip-39-no-further-a-mystery