Bip39-Standalone. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an extra layer of protection on your wallet that actually works alongside your seed phrase to encrypt and safeguard your wallet. A PIN, Then again, https://minibookmarks.com/story19499357/bip-39-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic