Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of protection towards your wallet that actually works along with your seed phrase to encrypt and secure your wallet. https://bookmarkbells.com/story19036066/ian-coleman-bip39-https-linktr-ee-bip39-what-does-ian-coleman-bip39-mean