Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of stability for your wallet that works alongside your seed phrase to encrypt and secure your wallet. A PIN, Alternatively, https://thesocialintro.com/story4539691/bip39-wallets-https-linktr-ee-bip39-bip39-words-an-overview