Bip39 Vs Slip39. Is passphrase the same as PIN? No, a passphrase isn't similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection to the wallet that works along with your seed phrase to encrypt and guard your wallet. A PIN, https://socialwebleads.com/story4200128/bip39-list-https-linktr-ee-bip39-an-unbiased-view-of-bip-39