Bip39 Checksum. Due to the cryptographic structure of BIP-39, a weak passphrase will not reduce the security of the other wallets or enable reveal the seed words. What constitutes a "good wallet" is one that has clear, straightforward to access documentation on supported BIP requirements, derivation paths, and recovery processes. https://letusbookmark.com/story21298219/bip39-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained