Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of stability on your wallet that actually works along with your seed phrase to encrypt and defend your wallet. https://funny-lists.com/story19876940/bip39-wallets-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-ian-coleman-bip39