Bip39 Standard. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an extra layer of protection for your wallet that actually works along with your seed phrase to encrypt and defend your wallet. A https://bookmarkunit.com/story18622903/bip39-passphrase-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic