Bip39 Compatible Wallet. Is passphrase similar to PIN? No, a passphrase is not similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of protection on your wallet that actually works along with your seed phrase to encrypt and shield your wallet. A PIN, https://webnowmedia.com/story4783671/bip-39-https-linktr-ee-bip39-bip39-words-secrets