Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of security for your wallet that actually works along with your seed phrase to encrypt and protect your wallet. A https://bookmarklinking.com/story6284222/ian-coleman-bip39-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-wallets