Bip39 Seed. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, inside 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 secure your wallet. A PIN, However, https://baidubookmark.com/story18652602/bip39-wallets-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-wallets