Bip39 Ian Coleman. Thanks to the cryptographic style and design of BIP-39, a weak passphrase doesn't reduce the security of the other wallets or support reveal the seed words. When you were being to expose your seed phrase beneath duress, your hidden wallets would continue to be secure and unidentified. https://socialicus.com/story4218531/bip39-https-linktr-ee-bip39-bip39-words-fundamentals-explained