Bip39 Compatible Wallet. Is passphrase similar to PIN? No, a passphrase will not be similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection for your wallet that actually works along with your seed phrase to encrypt and secure your wallet. https://getsocialpr.com/story20287509/bip39-mnemonic-https-linktr-ee-bip39-not-known-details-about-bip39-list