Bip39 Passphrase. Is passphrase the same as PIN? No, a passphrase is not similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of safety in your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. A PIN, on https://bookmarkjourney.com/story18657156/bip39-mnemonic-https-linktr-ee-bip39-an-unbiased-view-of-bip-39