Bip39. 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 safety to your wallet that actually works along with your seed phrase to encrypt and guard your wallet. A PIN, https://myeasybookmarks.com/story4260075/bip39-mnemonic-https-linktr-ee-bip39-5-essential-elements-for-bip39-word-list