Bip39 Checksum. Due to the cryptographic design and style of BIP-39, a weak passphrase would not reduce the security of the other wallets or enable expose the seed words. BIP39 specifies a list of 2048 words from which the mnemonic phrase is preferred. Each individual word signifies a number in https://kingslists.com/story19870903/bip39-passphrase-https-linktr-ee-bip39-not-known-details-about-bip39-list