Bip39 Seed. Is passphrase similar to PIN? No, a passphrase isn't the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of security to the wallet that actually works along with your seed phrase to encrypt and protect your wallet. A PIN, on https://bookmarkstown.com/story19688748/bip39-words-https-linktr-ee-bip39-an-unbiased-view-of-bip-39