Bip39 Mnemonic. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of stability to the wallet that works along with your seed phrase to encrypt and defend your wallet. A PIN, https://myeasybookmarks.com/story4163582/bip39-wallets-https-linktr-ee-bip39-the-fact-about-bip39-words-that-no-one-is-suggesting