Bip39 Word List Numbers. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of protection towards your wallet that works alongside your seed phrase to encrypt and defend your wallet. A PIN, https://socialbuzzfeed.com/story4314814/bip39-mnemonic-https-linktr-ee-bip39-bip-39-no-further-a-mystery