Bip39 Wallet. Because of the cryptographic design of BIP-39, a weak passphrase won't lessen the protection of another wallets or support expose the seed words. Without having a passphrase, your money are only as secure as your seed phrase. By including a passphrase, you build yet another layer of protection https://socialaffluent.com/story4244029/bip39-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf