Bip39 Seed Phrase. 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 security for your wallet that actually works along with your seed phrase to encrypt and protect your wallet. A PIN, https://thebookmarkage.com/story18996988/bip39-words-https-linktr-ee-bip39-5-essential-elements-for-bip39-word-list