Bip39 Wallet. Is passphrase similar to PIN? No, a passphrase isn't similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of security towards your wallet that works along with your seed phrase to encrypt and protect your wallet. A PIN, Alternatively, is https://bookmarkblast.com/story18786586/bip-39-https-linktr-ee-bip39-the-best-side-of-bip39