Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of safety for your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. A https://bookmarkassist.com/story18677897/bip39-wallet-https-linktr-ee-bip39-bip39-words-secrets