Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of security on your wallet that works along with your seed phrase to encrypt and safeguard your wallet. A PIN, https://health-lists.com/story19673103/bip39-list-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf