Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase isn't the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of safety on your wallet that works alongside your seed phrase to encrypt and protect your wallet. A PIN, Alternatively, is usually https://socialtechnet.com/story4526247/bip39-words-https-linktr-ee-bip39-the-fact-about-bip39-wallets-that-no-one-is-suggesting