Bip39 Seed. Is passphrase similar to PIN? No, a passphrase isn't similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of security for your wallet that works together with your seed phrase to encrypt and secure your wallet. A PIN, Then again, is https://bookmarkworm.com/story19336147/bip39-mnemonic-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-wallets