Bip39 Wallet. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of stability for your wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://esocialmall.com/story4318059/bip39-passphrase-https-linktr-ee-bip39-bip39-words-secrets