Bip39 Standard. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of safety in your wallet that works together with your seed phrase to encrypt and secure your wallet. A PIN, https://networkbookmarks.com/story18760610/bip39-wallet-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-wallets