Bip39 Ian Coleman. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of safety to your wallet that actually works along with your seed phrase to encrypt and safeguard your wallet. https://mysocialquiz.com/story4219764/bip39-mnemonic-https-linktr-ee-bip39-bip39-generator-an-overview