Bip39 Seed. Is passphrase similar to PIN? No, a passphrase will not be the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of security towards your wallet that works alongside your seed phrase to encrypt and protect your wallet. A PIN, https://getidealist.com/story20600059/bip39-https-linktr-ee-bip39-getting-my-ian-coleman-bip39-to-work