Bip39 Vs Slip39. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of security towards your wallet that actually works together with your seed phrase to encrypt and safeguard your wallet. A https://listfav.com/story20320544/bip39-wallet-https-linktr-ee-bip39-not-known-details-about-bip39-wallets