Bip39 Seed. 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 extra layer of safety for your wallet that actually works alongside your seed phrase to encrypt and shield your wallet. A PIN, on https://my-social-box.com/story4152814/bip39-word-list-https-linktr-ee-bip39-about-ian-coleman-bip39