Bip39 Vs Slip39. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of security to the wallet that actually works together with your seed phrase to encrypt and defend your wallet. A PIN, https://johsocial.com/story9296236/ian-coleman-bip39-https-linktr-ee-bip39-the-fact-about-bip-39-that-no-one-is-suggesting