Bip39 Npm. Is passphrase similar to PIN? No, a passphrase is not the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of safety to the wallet that works along with your seed phrase to encrypt and safeguard your wallet. A PIN, https://socialtechnet.com/story4247246/bip39-words-https-linktr-ee-bip39-an-unbiased-view-of-bip-39