Bip39 Words. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of safety to your wallet that works alongside your seed phrase to encrypt and protect your wallet. A PIN, on https://toplistar.com/story20989895/bip39-list-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-wallets