Bip39. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of safety for your wallet that actually works together with your seed phrase to encrypt and defend your wallet. A PIN, However, https://bookmarkinginfo.com/story18654062/bip39-https-linktr-ee-bip39-helping-the-others-realize-the-advantages-of-bip39