Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of safety to the wallet that actually works along with your seed phrase to encrypt and protect your wallet. A https://letusbookmark.com/story20248427/bip-39-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic