Bip39 Seed. Is passphrase similar to PIN? No, a passphrase isn't similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of security in your wallet that works together with your seed phrase to encrypt and guard your wallet. A PIN, Conversely, is usually https://socialbuzzfeed.com/story5067955/bip39-words-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described