Bip39 Standard. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of stability to the wallet that works along with your seed phrase to encrypt and shield your wallet. A PIN, https://bookmarkleader.com/story18656748/bip39-mnemonic-https-linktr-ee-bip39-bip-39-no-further-a-mystery