Bip39 Standard. Is passphrase the same as PIN? No, a passphrase is just not similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of safety towards your wallet that works alongside your seed phrase to encrypt and shield your wallet. A PIN, https://worldlistpro.com/story20574957/bip39-mnemonic-https-linktr-ee-bip39-the-fact-about-bip39-words-that-no-one-is-suggesting