Bip39 Standard. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of protection for your wallet that actually works along with your seed phrase to encrypt and shield your wallet. A PIN, https://bookmarkfame.com/story19373455/bip39-list-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy