Bip39 Vs Slip39. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of protection on your wallet that actually works along with your seed phrase to encrypt and shield your wallet. https://bookmarklinx.com/story18755308/bip39-list-https-linktr-ee-bip39-how-bip39-generator-can-save-you-time-stress-and-money