Bip39 Vs Slip39. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of safety on your wallet that actually works along with your seed phrase to encrypt and secure your wallet. A https://bookmark-share.com/story18802847/bip39-wallet-https-linktr-ee-bip39-about-ian-coleman-bip39