Bip39 Ian Coleman. Because of the cryptographic layout of BIP-39, a weak passphrase isn't going to reduce the security of another wallets or help expose the seed words. When you insert a passphrase in your seed phrase, it wholly changes the derived personal keys and public addresses in your wallet. https://allyourbookmarks.com/story19642399/ian-coleman-bip39-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work