Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of stability on your wallet that actually works alongside your seed phrase to encrypt and shield your wallet. A PIN, https://thesocialvibes.com/story4301200/bip39-mnemonic-https-linktr-ee-bip39-bip39-words-an-overview