Bip39 Wallet. Thanks to the cryptographic structure of BIP-39, a weak passphrase isn't going to lessen the security of another wallets or enable expose the seed words. At its core, a BIP39 passphrase modifies the cryptographic means of wallet generation. Here’s a technological have a look at how it works: https://letsbookmarkit.com/story19037507/bip39-word-list-pdf-https-linktr-ee-bip39-the-best-side-of-bip39