Bip39 Passphrase. Because of the cryptographic design of BIP-39, a weak passphrase isn't going to reduce the protection of one other wallets or assist expose the seed words. When you increase a passphrase to the seed phrase, it completely improvements the derived private keys and community addresses for the wallet. https://bookmarkshq.com/story20452221/ian-coleman-bip39-https-linktr-ee-bip39-a-review-of-bip39-generator