Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of protection to the wallet that works alongside your seed phrase to encrypt and shield your wallet. A PIN, on https://eternalbookmarks.com/story18526391/bip39-generator-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic