Bip39 Tool. Due to the cryptographic style of BIP-39, a weak passphrase won't lessen the safety of another wallets or assistance reveal the seed words. BIP39 is actually a design implementation that lays out how copyright wallets produce the list of words (or "mnemonic codes") that make up a mnemonic https://socialwebconsult.com/story4028745/bip39-passphrase-https-linktr-ee-bip39-not-known-factual-statements-about-bip39-list