Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of stability to the wallet that works alongside your seed phrase to encrypt and shield your wallet. A PIN, on https://natural-bookmark.com/story19469888/bip39-https-linktr-ee-bip39-about-ian-coleman-bip39