Bip39 Vs Slip39. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of safety in your wallet that works along with your seed phrase to encrypt and guard your wallet. A PIN, https://tornadosocial.com/story4572151/ian-coleman-bip39-https-linktr-ee-bip39-the-best-side-of-bip39-mnemonic