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 on your wallet that works together with your seed phrase to encrypt and shield your wallet. A PIN, However, is https://getidealist.com/story21400146/bip39-wallets-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic