Bip39 Word List Numbers. Is passphrase similar to PIN? No, a passphrase will not be the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an extra layer of security on your wallet that works along with your seed phrase to encrypt and shield your wallet. https://socialfactories.com/story4314196/bip39-passphrase-https-linktr-ee-bip39-the-best-side-of-bip39-mnemonic