Bip39 Mnemonic. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of protection to your wallet that actually works alongside your seed phrase to encrypt and defend your wallet. A PIN, https://bookmarkingbay.com/story18738479/bip39-wallets-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic