Bip39 Vs Slip39. Is passphrase similar to PIN? No, a passphrase will not be similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of stability for your wallet that actually works along with your seed phrase to encrypt and protect your wallet. A https://e-bookmarks.com/story4451098/bip-39-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained