Bip39 Github. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an extra layer of stability on your wallet that actually works along with your seed phrase to encrypt and defend your wallet. A PIN, https://social4geek.com/story4656150/bip39-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase