Bip39 Vs Slip39. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of security in your wallet that actually works alongside your seed phrase to encrypt and shield your wallet. https://artybookmarks.com/story19341255/bip39-wallets-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic