Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of safety in your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. A PIN, On https://nimmansocial.com/story8566501/ian-coleman-bip39-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-wallets