Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase isn't the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of security for your wallet that works along with your seed phrase to encrypt and safeguard your wallet. A PIN, https://getsocialnetwork.com/story4236639/bip39-words-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained