Bip39 Standard. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability to your wallet that actually works along with your seed phrase to encrypt and shield your wallet. A https://thebookmarkplaza.com/story18796267/bip-39-https-linktr-ee-bip39-a-review-of-bip39-generator