Bip39 Mnemonic. Thanks to the cryptographic design and style of BIP-39, a weak passphrase won't reduce the security of another wallets or assist expose the seed words. What constitutes a "good wallet" is one that has obvious, easy to obtain documentation on supported BIP standards, derivation paths, and recovery procedures. https://socialinplace.com/story4471768/bip39-passphrase-https-linktr-ee-bip39-the-best-side-of-bip39