Bip39. Is passphrase the same as PIN? No, a passphrase just isn't the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of safety to the wallet that actually works alongside your seed phrase to encrypt and safeguard your wallet. A PIN, https://socialaffluent.com/story4673328/bip39-mnemonic-https-linktr-ee-bip39-bip39-words-fundamentals-explained